CN1155295C - Two-wire circuit equipment - Google Patents
Two-wire circuit equipment Download PDFInfo
- Publication number
- CN1155295C CN1155295C CNB99121823XA CN99121823A CN1155295C CN 1155295 C CN1155295 C CN 1155295C CN B99121823X A CNB99121823X A CN B99121823XA CN 99121823 A CN99121823 A CN 99121823A CN 1155295 C CN1155295 C CN 1155295C
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- operation part
- load
- memory element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The object is to equip a power source portion that can supply electric power necessary for the operational portion without feeding current necessary for the operational portion as a constant current in the serial circuit of a utility power source, a power source portion and a operational portion. A load switching apparatus 10 with human body detection function has two wire connection terminals T1, T2, and includes a rectifying circuit portion 11, a power source portion 12, a operational portion 13, a voltage supply circuit 14, a load switching portion 15 and a drive circuit portion 16. A superior two-wire circuit appliance having the power source portion 12 that can supply electric power necessary for the operational portion 13 without feeding current necessary for the operation portion 13 as a constant current into the serial circuit of the utility power 1, the power source portion 12 and operational portion 13 is provided.
Description
Technical field
The present invention relates to two-wire circuit equipment.
Background technology
By convention, have the load switching part 40 that the human detection function is used for automatic light-operated system and be presented at Fig. 6, its automatically connect load switching part 43 with provide public city electrical power 1 be used for when human body near the time light the light source corresponding 2 with load, and be used for when human body leaves, shutting automatically load switching part 43 with the supply of cut-out to the civil power 1 of light source 2.Load switching part 40 with human detection function comprises power unit 41, operation part 42 and load switching part 43.Operation part 42 is the parts that are used to drive with control load switching part 43.Operation part 42 comprises exchange control section 42a, infrared sensor part 42b and daytime Sensor section 42c.
The constant power work that daytime, Sensor section 42c provided by power unit 41, and the illumination of testing environment unchangeably, so that when ambient light illumination is darker than predetermined illumination, to the predetermined darker dark signal of illumination of illumination ratio of exchange control section 42a output indicative for environments.
Exchange control section 42a is by the stabilized power source work that provides from power unit 41, and according to the logic multiply of daytime sensing part 42 dark signal and human detection signal (with) indication load switching part 43 connects.After the on-state of load switching part 43 kept a predetermined period, exchange control section 42a instruction load switching part 43 was shut.
Therefore, in above-mentioned-load switching part 40 with human detection function of mentioning, it is required to guarantee by public civil power 1, the path of the closure of load switching part 43 and load 2, and another is by civil power 1, the close access of power unit 41 and operation part 42.Therefore, need be used for four joint T1-T4 of wiring, a problem of generation is exactly the wiring increase that is provided with on the load switching part 40 of human detection function having.
Above-mentioned in order to solve-as to mention problem, disclosed two-wire circuit equipment among the flat 1-133535 of patent gazette of known not authorization in Japan, its power unit 41, operation part 42 and load of having only the two wires jointing to be used to merge above-mentioned-load switching part 40 with human detection function of mentioning connects changes part 43.
The two-wire circuit equipment that discloses in the flat 1-133535 of unexamined patent gazette of Japan shown in Figure 8 is a Long-distance Control adapter 50.Long-distance Control adapter 50 has two wires jointing T1, T2, and integrated drive generator part 51, operation part 52, load switching part 53 and auxiliary circuit part 54.Operation part 52 comprises exchange control section 52a and remote control signal receiver part 52b.
In Long-distance Control adapter 50 shown in Figure 8, auxiliary circuit part 54 is connected to the circuit that comprises load 2 in parallel with load switching part 53, and having is enough to reduce the impedance of load voltage to a level, and load can not be driven when being disconnected with convenient load switching part 53.In addition, power unit 51 is connected to the circuit that comprise load 2 in parallel with load switching part 53 and auxiliary circuit part 54, is to be switched on or switched off and to operation part 52 (exchange control section 52a and remote control signal receiving unit 52b) power supply so that do not rely on load switching part 53.
Yet in above-mentioned-traditional two-wire circuit equipment of mentioning, power unit 51 in series is inserted in the circuit that comprises load 2, so that power unit 51 work that can continue, and does not depend on that load switching part 53 is to be switched on or switched off.In addition, it is bigger that the impedance of the auxiliary circuit 54 that is connected in parallel with load switching part 53 partly is set up, so that load 2 can not be driven when load switching part 53 is disconnected, although constant-voltage equipment is used to export stable constant voltage from the power unit 51 of connection as described above as very receiving diode.Therefore, the electric current that flows through power unit 51 comes down to depend on that load switching part 53 changes being switched on or switched off state.
Therefore, the output voltage of power unit 51 becomes instability, and the element with high current capacity must stand the starting current when load is connected, that is, and and when load switching part 53 is connected.Also need a kind of measure of heat resistanceheat resistant, this causes big size and expensive.In addition, because its low consumption has become the inverter type fluorescent lighting fixture that uses widely recently following shortcoming is arranged.With traditional incandescent lamp or to have with iron and copper be that the fluorescent lamp of the light ballast of material is compared, when connecting load, in the inverter type fluorescent lamp, there is big starting current to flow.Therefore, element is breakdown easily such as the Zener diode of power unit 51.Prevent that the circuit that punctures from being very complicated.
Above-mentioned in order to solve-problem mentioned, flat 9-204533 has disclosed a kind of two-wire circuit equipment in the Japanese patent application, a stable power can be provided to operation part therein, and does not depend on the variation of load impedance, does not depend on that also the load switching part is to be switched on or switched off.
Disclosed a kind of two-wire circuit equipment in the flat 9-204533 of Japanese patent application, it is one to have the load switching part 60 of human detection function, is presented among Fig. 9.Have filter circuit part 61, power unit 62, auxiliary power circuit 63, operation part 64 and load switching part 65 that the load switching part 60 of human detection function has two wires jointing TI, T2 and combines.Operation part 64 comprises switching control section 62a, infrared sensor part 64b and daytime Sensor section 64c.
In addition, the two-wire circuit equipment that is presented at Figure 10 is to be removed a kind of situation that is coupled with supply unit 68 being presented at the auxiliary power circuit 63 that Fig. 9 has the load switching part 60 of human detection function.
Be presented in the load switching part 60 among Fig. 9 with human detection function, power unit 62 parallel connections be connected to load switching part 65, and has an impedance, this impedance is enough to fully reduce load voltage to a level, is that load can not be driven when disconnecting with convenient load switching part 65.In addition, auxiliary power circuit 63 stably provides electric power to operation part 64, and does not depend on the variation of load impedance 2, does not depend on that also load switching part 65 is switched on or switched off.In being presented at the load switching part 60 with human detection function of Figure 10, supply unit 66 enables load switching part 65 and connects a longer cycle.
Yet the auxiliary power circuit 63 of above-mentioned-two-wire circuit equipment of mentioning is restricted for power supply.
In addition, in the load switching part 60 in being presented at Fig. 9 with human detection function, power unit 62 is by the load switching part 65 that is connected in parallel, and be set to an impedance, this impedance can be reduced to a level to load voltage, is that load 2 can not be driven when disconnecting with convenient load switching part 65.In addition, have a resistance of high resistance, a megaohm for example, the connection of being connected is used for the input voltage of operation part 64.
In addition, the circuital current that can be provided to operation part 64 also flows into load 2 by power unit 62.During standby, in wide variety of glow-type small-power-factor fluorescent lamp, current value will be lower than the electric current when the starting resistor (about 65 volts of AC) of aura-discharge tube, so that aura-discharge tube fail to start.Therefore, circuital current will be controlled in the scope of about 150-180 microampere.Therefore, the current sinking of operation part 64 can only be arranged in the scope of about 150-180 microampere, so limited the circuit that is used for operation part.
Summary of the invention
The objective of the invention is to solve above-mentioned-problem of mentioning, first-class two-wire circuit equipment promptly is provided, it has a power unit, this power unit can provide the electric power that needs for operation part, and needn't be in the series circuit of city's power supply, power unit and operation part the required electric current of feeder operation part constantly.
Above-mentioned in order to solve-problem mentioned, a first aspect of the present invention provides a kind of two-wire circuit equipment, it comprises: operation part, it is connected with AC power, described AC power is connected with load by a power unit and filtering part, and described operation part is used for human body and exports a detection signal to the driving circuit section that drives load; One load switching part, it comprises that a switching device that is switched by driving circuit section is used for the driving of control load; And a voltage feed circuit, it is used for providing voltage to operation part when driving load.Power unit comprises: first switching device in operation part one side path of being inserted in that is connected to the output of filter circuit part and series connection; Be connected to a current limiting element of the opposite side of switching device; Be arranged on the electric memory element with electric memory function of the opposite side of current limiting element; Series connection is inserted in a second switch device corresponding with the tie point of first switching device and electric memory element in the passage of operation part one side; One voltage detecting circuit is used to monitor the charge potential that electric memory element fills and whether reaches a predetermined magnitude of voltage so that detect this charge potential that fills; And a control section, it can change the switching state of first and second switching devices according to the detection signal of voltage detecting circuit.When the charge potential that is filled of electric memory element is when being lower than predetermined voltage, control section make first switching device at closed circuit state and second switch device at open-circuit condition, simultaneously when the charge potential of electric memory element be when surpassing predetermined voltage, control section make first switching device at open-circuit condition and second switch device in closed circuit state.
According to a second aspect of the invention, power unit comprises voltage converter circuit, it inserts between the opposite side and operation part of second switch device, is used for the charge potential of electric memory element is transformed into a voltage that is lower than this charge potential, so that to the operation part output voltage.
According to a third aspect of the invention we, voltage converter circuit comprises: be connected to the opposite side of second switch device and in series be inserted in a coil in the operation part one side path; Its negative electrode is connected to the tie point of second switch device and coil and a diode of plus earth; And anode is connected to a capacitor of the tie point of coil and operation part.
According to a forth aspect of the invention, voltage converter circuit comprises: first diode, its anode is connected to the secondary of transformer, the elementary opposite side that is connected to the second switch device of transformer, one second diode, its negative electrode is connected to negative electrode one side of first diode, the coil that the tie point that is connected first and second diodes is connected with the passage of operation part one side, and anode is connected to a capacitor of the tie point of this coil and operation part.
Description of drawings
Fig. 1 is the block diagram according to the two-wire circuit equipment of the first embodiment of the present invention;
Fig. 2 is the block diagram according to the voltage conversion circuit major part of the two-wire circuit equipment of the first embodiment of the present invention;
Fig. 3 is the block diagram of two-wire circuit equipment according to a second embodiment of the present invention;
Fig. 4 is the time sequential routine figure of demonstration according to the major part of the two-wire circuit equipment of the first embodiment of the present invention;
Fig. 5 is the sequential chart of demonstration according to the operation of the two-wire circuit equipment of the first embodiment of the present invention;
Fig. 6 is the block diagram with conventional load switching equipment of human detection function;
Fig. 7 is the infrared sensor block diagram partly with conventional load switching equipment of human detection function;
Fig. 8 is the block diagram of first example of conventional load switching equipment;
Fig. 9 is the block diagram of second example of conventional load switching equipment;
Figure 10 is the block diagram of second example of conventional load switching equipment.
Embodiment
Below, with reference to Fig. 1 and 2, describe first embodiment of two-wire circuit equipment of the present invention and describe second embodiment with reference to Fig. 3.
[first embodiment]
Fig. 1 is the block diagram as the load switching part with human detection function of two-wire circuit equipment.At Fig. 1, numeral 1 is 100 volts of electric main power supplys, and numeral 2 is the loads (such as lamp) by switch control, and numeral 10 is the load switching parts with human detection function corresponding to two-wire circuit equipment.
As shown at Fig. 1, load switching part 10 with human detection function has two wires jointing T1, T2, and contains filter circuit part 11, power unit 12, operation part 13, voltage feed circuit 14, load switching part 15, driving circuit section 16 and phase-detection part 17.
The alternating voltage that 11 filterings of filter circuit part are obtained from the city's power supply 1 that comprises load 2 and voltage feed circuit 14.Filter circuit part 11 is made up of diode bridge circuit or other elements, and its importation is connected to voltage feed circuit 14, load switching part 15 and a line jointing T2.
Voltage detecting circuit 12c checks that whether the pulsating voltage that is provided by filter circuit part 11 surpasses predetermined voltage, and this result outputs to control section 12e.If pulsating voltage is lower than predetermined voltage, control section 12e is provided with the first switching device 12a to on-state, and second switch device 12b is to off-state.In the case, by control section 12e control, electric memory element 12d is charged to a predetermined voltage from the city's power supply 1 that comprises load 2 by the filter circuit part 11 and the first switching device 12a.
In addition, when pulsating voltage surpassed predetermined voltage, control section 12e was located at off-state with the first switching device 12a, and second switch device 12b is located at on-state.In the case, electric memory element 12d discharge and transmit electric power to voltage regulator circuit 12g and operation part 13 by second switch device 12b.
In order to prevent to flow directly into operation part 14 from the electric current that the city's power supply 1 that comprises load 2 is presented by filter circuit part 11, the timing of control section 12e control transformation causes the first switching device 12a and second switch device 12b not to connect simultaneously.In addition, in some cases, need to connect input current limiting element 12h, so that when electric memory element 12d is recharged, promptly the first switching device 12a is when on-state, and peak current (resemble and allow the starting current that load 2 is lighted or aura-discharge electron tube discharges) can not flow into electric memory element 12d by load 2.And, when the first switching device 12a disconnects, need electric memory element to finish the required voltage that is charged to a predetermined pulsating voltage.
By the capacity setting with electric memory element 12d is and the identical in fact value of capacity 0.006-0.01 microfarad of suppression condenser in aura small-power-factor fluorescent lamp that the voltage that is applied to the glow discharge tube two ends can be restricted to the starting resistor that is lower than glow discharge tube.The charge potential of electricity memory element 12d is required to be set to a value, and this value can guarantee the power that operation part is required, promptly 1/2 * (capacity of electric memory element 12d) * (charge potential of electric memory element 12d square).Also need to be provided with current-limiting part 12h and charge potential so that before reaching this charge potential glow discharge can not by charge current flows begin the discharge.
In addition, when second switch device 12b connects and the energy in electric memory element 12d that has stored, promptly, 1/2 * (capacity of electric memory element 12d) * (charge potential of electric memory element 12d square) when being discharged, voltage converter circuit 12f is with the low-voltage of this energy conversion one-tenth in the input voltage range of voltage regulator circuit 12g, and store an electric energy, this electric energy can be provided to voltage regulator circuit 12g and operation part 13 till carrying out next one discharge.
For example, as shown in Figure 2, voltage converter circuit 12f is by diode 12f1, and coil 12f2 and capacitor 12f3 form.That is, along with the connection of second switch device 12b, electric charge moves (that is, discharging current flow into capacitor 12f3) so that capacitor 12f3 charged by coil 12f2 to capacitor 12f3 from electric memory element 12d immediately.The charge potential of capacitor 12f3 depends on the value of electric memory element 12d, coil 12f2 and capacitor 12f3.For example, if the capacity of electric storage area 12d is 10nF, charge potential is 60 volts (V), coil 12f2 is 20 milihenries (mH), capacitor 12f3 is 22 microfarads, and the load impedance of operation part is 10 kilohms, so approximately can obtain the charge potential of 3.5 volts capacitor 12f3, and operation part on average can be provided about 350 microamperes electric current.
Daytime, Sensor section 13c was provided by the constant power work that provides from power unit 12 or voltage feed circuit 14, and be by as, Cds (cadmium sulfide) light receiving element or photodiode constitute.If the illumination of environment is darker than predetermined illumination, this true signal of Sensor section 13c output indication in daytime is to determination processing part 13a.
It is short-circuit condition that load switching part 15 makes the importation of filter circuit 11 according to the connection signal from drive circuit 16.In the case, load switching part 15 is made of such as TRIAC semiconductor switch device.
The ripple voltage of phase-detection part 17 detection filter circuit parts 11 reaches predetermined voltage, and this true signal of output indication is to driving circuit section 16.
The load switching part 10 of above-mentioned-tool human detection function of mentioning is following connection.That is, line jointing T1 is connected to a side of mains supply 1.Line jointing T2 is connected to the opposite side of mains supply 1 by load 2.Line jointing T1 is connected to a side of voltage feed circuit 14.The opposite side of voltage feed circuit 14 is connected to the importation of load switching part 15 and filter circuit part 11.
The anode output of filter circuit part 11 is connected respectively to the importation of the first switching device 12a, i.e. each side of importation of power unit 12, and driving circuit section 16 and phase-detection part 17.Each opposite side of driving circuit section 16 and phase place inspection side part 17 is connected to the negative electrode output of filter circuit part 11.The common sparing of power unit 12 (promptly, the first switching device 12a, second switch device 12b, voltage detecting circuit 12c, electricity memory element 12d, control section 12e, the common sparing of voltage converter circuit 12f and voltage detecting circuit 12c) is connected to the negative electrode output of filter circuit part 11.The first switching device 12a is connected to importation one side of electric storage area 12d and second switch device 12b.The output of second switch device 12b is connected to the importation of voltage converter circuit 12f, and the output of voltage converter circuit 12f is connected to the output of pressurizer 12g.The output of power unit 12 (that is, the output of pressurizer 12g) be connected to operation part 13 a side (that is, and the side of determination processing part 13a, the side of infrared sensor part 13b and daytime Sensor section 13c a side).The common sparing of operation part 13 (that is, and determination processing part 13a, infrared sensor part 13b and daytime Sensor section 13c common sparing) be connected to the negative electrode output of filter circuit part 11.
10 work of the load switching part with human detection function with above-mentioned-structure of mentioning are as follows.When the illumination of environment is bright by day, be connected to the public civil power 1 that comprises load 2 if having line jointing T1, the T2 of the load switching equipment 10 of human detection function, load 2 is compelled to light (a few minutes) providing voltage by voltage feed circuit 14 to pressurizer 12g, with cause determination processing part 13a, infrared sensor part 13b, daytime Sensor section 13c and power unit 12 (for example in 5 seconds) in the predetermined cycle reach operating voltage.
The output of voltage regulator circuit 12g become stable after, load 2 is disconnected, and be interrupted from the power voltage supply of voltage feed circuit 14, and the importation of power unit 12 has been applied in pulsating voltage.The control section 12e of power unit 12 controls the first switching device 12a and second switch device 12b, carries out charging and the discharge of electric memory element 12d in every half-wave of the pulsation output voltage of filter circuit part 11.The output of voltage converter circuit 12f reaches predetermined voltage then, and stable voltage is provided to voltage regulator circuit 12g and operation part 13.In the meantime, the output voltage of voltage regulator circuit 12g is provided such as electrolytic capacitor by electric memory element.Therefore, has the power unit 12 of load switching part 10 of human detection function to determination processing part 13a, infrared sensor part 13b and Sensor section 13c power supply in daytime.According to this structure, voltage detecting circuit 12c and control section 12e also can be supplied electric power.
After that, because the illumination of environment is bright, so daytime, Sensor section 13c did not export dark signal.Determination processing part 13a output stand-by state signal is to driving circuit section, so that load switching part 15 keeps off-state.
When the illumination of environment became dark at night, Sensor section 13c output in daytime dark signal was to determination processing part 13a.If a certain people enters the sensitizing range of infrared sensor part 13b such as the guest, infrared sensor part 13b output human detection signal is to determination processing part 13a so.Then, according to the logic multiply of dark signal and human detection signal (with), determination processing part 13a output services status signal continues predetermined periods (for example, about a minute) to driving circuit section 16.In addition, driving circuit section 16 is connected load switching part 15 according to working state signal, and makes load 2 illuminate state.
Whether the pulsating voltage that phase detection part 17 is provided for detection filter circuit part 11 reaches predetermined voltage and this true signal of output indication.Driving circuit section 16 instruction load switching parts 15 are connected according to connection signal, this connection signal be from the connection signal of operation part 13 and from the logic multiply of the signal of phase-detection part 17 (with).Therefore, starting current can be prevented from.
During load switching part 15 was connected, the input voltage of power unit 12 almost was zero volt, and power unit 12 become be difficult to provide sufficient electric power to determination processing part 13a, infrared sensing part 13b and daytime Sensor section 13c.In this state, the voltage feed circuit 14 that is connected in series public city power supply 1 and load 2 utilizes the some light current of load 2 to voltage regulator circuit 12g, determination processing part 13a, infrared sensor part 13b and Sensor section 13c power supply in daytime, and it has replaced power unit 12.Therefore, voltage regulator circuit 12g, determination processing part 13a, infrared sensor part 13b and daytime, Sensor section 13c can not stop working continuously.
Promptly, when power connection, the load switching part 10 with human detection function with said structure of corresponding two-wire circuit equipment can be by voltage feed circuit 14 to voltage regulator circuit 12g and operation part 13 (determination processing part 13a, infrared sensor part 13b and daytime Sensor section 13c) power supply, and has the appropriate state that is operated in that the load switching part 10 of human detection function can be very fast.The sequential chart of aforesaid operations is shown in Figure 4 and 5.
In addition, during stand-by state, charging and discharge and the voltage transformation by voltage converter circuit 12f of power unit 12 by electric memory element 12d, to comprise determination processing part 13a, infrared sensor part 13b and daytime Sensor section 13c operation part 13 electric current of the starting current that equals or exceeds glow discharge tube is provided.In addition, if load 2 is wide variety of glow-type small-power-factor fluorescent lamps, the terminal voltage of aeolight can be limited under the starting resistor.Therefore, can be prevented from, so that can prevent the reduction of glow discharge tube lifetime in the faint discharge of stand-by state glow discharge tube.
In addition, in working order, by voltage provide circuit 14 to voltage regulator circuit 12g and comprise determination processing part 13a, infrared sensor part 13b and daytime Sensor section 13c operation part 13 provide lighting of power supply and load 2 can not have compatible carrying out.
In addition, when the kind of load 2 is changed, for example, change to incandescent lamp, the impedance variation of load 2 from fluorescent lamp.In the case because the impedance phase of circuit impedance and other light sources is bigger than sufficiently, stable electric power can be provided for comprise determination processing part 14a, infrared sensor part 14b and daytime Sensor section 14c operation part 14.
[second embodiment]
Fig. 3 is the block diagram as the load switching equipment with human detection function of two-wire circuit equipment.At Fig. 3, and be presented at being represented with same numbers so that omits the details explanation among Fig. 1 and 2 as the identical parts in the load switching part of first embodiment of two-wire circuit equipment with human detection function.
Be presented at the load switching part with human detection function 10 of Fig. 3 unique with the voltage converter circuit 12f that is not both first embodiment be by the first diode 12f1, the second diode 12f4, coil 12f2, capacitor 12f3 and transformer 12f5 form.
That is, when second switch device 12b connects, and the primary coil of the electric charge inflow transformer 12f5 of electric storage area 12d, as the electric current of resonance, a resonance current corresponding to transformer turn ratio takes place in the secondary coil of transformer 12f5.The resonance of this conversion flow to capacitor 12f3 by coil 12f2 immediately.In other words, when the electric current of resonance flowed into capacitor 12f3, capacitor 12f3 was recharged.The charge potential of capacitor 12f3 depends among electric storage area 12d, coil 12f2, capacitor 12f3 and the transformer 12f5 value of each.For example, if the capacitance of electric storage area 12d is 10 picofarads (nF), charging voltage is 60V, the turn ratio of transformer 12f5 is 10: 1, the inductance value of coil 12f2 is 20mH, and the capacity of capacitor 12f3 is 22 microfarads, and the impedance of operation part is 10 kilohms, can obtain the charge potential of about 3.5 volts capacitor 12f3 so, operation part can be provided average 350 microamperes electric current.
The present invention is not limited by embodiment recited above.It can be connected to load switching part 15 such as thyristor or field-effect transistor control the outlet side of filter circuit part 11 by switching device.It also can pass through any one that integrated drive electronics part 16, determination processing part 14a and phase-detection part 17 are omitted wherein.In addition, if the starting current of the glow discharge tube of the current ratio wide variety of glow-type small-power-factor fluorescent lamp of operation part 14 is little a lot, drop in the scope of input voltage of voltage regulator circuit by charge potential so, can omit voltage converter circuit 12f electric memory element 12d.Do not light if the peak value of the charging current of electric storage area 12d does not influence load 2, also do not have the discharge of aura-discharge tube, current-limit resistor 12h can be omitted.In other words, infrared sensor part 14b and daytime Sensor section 14e can substitute with the receiver section of wireless remote control section.The present invention can change in the scope of the purpose of above-mentioned invention.Such change is included in the scope of the present invention.
Invention according to first aspect present invention, good two-wire circuit equipment can be provided, it has simple structure, if load is a wide variety of glow-type low power factor fluorescent lamp, it can store in electric memory element will stably be provided to the electric energy of operation part, and do not have the discharge of glow discharge tube, and load therein is unrestricted.
According to the invention of second aspect present invention, outside the usefulness of the invention of first aspect present invention, can obtain another usefulness.One good two-wire circuit equipment can be provided, it is simple in structure, when load is wide variety of glow-type low power factor fluorescent lamp, and the circuital current of operation part is on the starting resistor of glow discharge tube, glow discharge tube does not discharge so, and the input voltage of pressurizer can be lowered, and stable electric power is provided to operation part, cause the circuit of operation part not to be limited, and the kind of load is not limited.
According to the invention of third aspect present invention, outside the usefulness of the invention of the present invention aspect first and second, can obtain another usefulness.One good two-wire circuit equipment can be provided, and it is simple in structure, and can realize the reduction of voltage regulator circuit input voltage.
According to the invention of fourth aspect present invention, outside the usefulness of the invention aspect the present invention first to three, can obtain another usefulness.One good two-wire circuit equipment can be provided, and it is simple in structure, and can realize the reduction of voltage regulator circuit input voltage.
Claims (4)
1. two-wire circuit equipment, comprising:
One operation part, it is connected with AC power, and described AC power is connected with load by a power unit and filter circuit part, and described operation part is used for human body and exports a detection signal to the driving circuit section that drives load;
One load switching part, it comprises that a switching device that is switched by driving circuit section is used for the driving of control load;
One voltage feed circuit, it is used for providing voltage to operation part when driving load; And
This power unit comprises:
Be connected to first switching device in operation part one side path of being inserted in of the output of filter circuit part and series connection;
Be connected to a current limiting element of the opposite side of switching device;
Be arranged on the electric memory element with electric memory function of the opposite side of this current limiting element;
Series connection is inserted in a second switch device corresponding with the tie point of first switching device and electric memory element in the passage of operation part one side;
One voltage detecting circuit is used to monitor the charge potential that is filled of electric memory element so that detect this charge potential that fills whether reach a predetermined magnitude of voltage;
An and control section, it can change the switching state of first and second switching devices according to the detection signal of voltage detecting circuit, wherein when the charge potential that is filled of electric memory element is lower than predetermined voltage, control section make first switching device at closed circuit state and second switch device at open-circuit condition, simultaneously when the charge potential that is filled of electric memory element surpasses predetermined voltage, control section make first switching device at open-circuit condition and second switch device in closed circuit state.
2. two-wire circuit equipment according to claim 1, it is characterized in that power unit comprises a voltage converter circuit, it inserts between the opposite side and operation part of second switch device, be used for the charge potential that is filled of electric memory element is transformed into a voltage that is lower than this charge potential, so that export this voltage to operation part.
3. two-wire circuit equipment according to claim 2 is characterized in that voltage converter circuit comprises:
Be connected to the opposite side of second switch device and in series be inserted in a coil in the operation part one side path;
Its negative electrode is connected to the tie point of described second switch device and described coil and anode connects a diode of earth terminal; And
Anode is connected to a capacitor of the tie point of described coil and described operation part.
4. two-wire circuit equipment according to claim 2 is characterized in that voltage converter circuit comprises:
First diode, its anode is connected to the secondary of a transformer, the elementary opposite side that is connected to the second switch device of this transformer,
One second diode, its negative electrode are connected to negative electrode one side of this first diode,
The coil that the tie point that is connected first and second diodes is connected with the passage of operation part one side, and
Anode is connected to a capacitor of the tie point of this coil and operation part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30999998A JP3436158B2 (en) | 1998-10-30 | 1998-10-30 | 2-wire wiring device |
| JP309999/1998 | 1998-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1255822A CN1255822A (en) | 2000-06-07 |
| CN1155295C true CN1155295C (en) | 2004-06-23 |
Family
ID=17999936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB99121823XA Expired - Fee Related CN1155295C (en) | 1998-10-30 | 1999-10-18 | Two-wire circuit equipment |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3436158B2 (en) |
| CN (1) | CN1155295C (en) |
| TW (1) | TW449681B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4735217B2 (en) * | 2005-02-24 | 2011-07-27 | 東芝ライテック株式会社 | Two-wire load control device |
| JP4748024B2 (en) * | 2006-10-16 | 2011-08-17 | パナソニック電工株式会社 | 2-wire switch device |
| JP4706649B2 (en) * | 2007-03-08 | 2011-06-22 | パナソニック電工株式会社 | 2-wire switch device |
| SG172384A1 (en) * | 2008-12-22 | 2011-07-28 | Panasonic Elec Works Co Ltd | Load control device |
| CN102195452A (en) * | 2010-03-18 | 2011-09-21 | 深圳市和路元电子有限公司 | Power switching device, automatic system and power supply method |
| JP5645109B2 (en) | 2010-07-27 | 2014-12-24 | パナソニックＩｐマネジメント株式会社 | Two-wire load control device |
| JP5903673B2 (en) * | 2012-03-05 | 2016-04-13 | パナソニックＩｐマネジメント株式会社 | Two-wire load control device |
-
1998
- 1998-10-30 JP JP30999998A patent/JP3436158B2/en not_active Expired - Fee Related
-
1999
- 1999-10-18 CN CNB99121823XA patent/CN1155295C/en not_active Expired - Fee Related
- 1999-10-27 TW TW88118560A patent/TW449681B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW449681B (en) | 2001-08-11 |
| JP3436158B2 (en) | 2003-08-11 |
| JP2000133473A (en) | 2000-05-12 |
| CN1255822A (en) | 2000-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5942314B2 (en) | Lighting device and lighting apparatus using the same | |
| CN1161007C (en) | Ballast | |
| CN1156201C (en) | Anti-flicker circuit for fluorescent lamp ballast driver | |
| CN1199526C (en) | Ballast | |
| US8598792B2 (en) | Driving circuit for powering LED light sources | |
| US20070120497A1 (en) | Dimmer control system and controlling method thereof | |
| CN106028567B (en) | A kind of emergency lighting circuit and emergency light | |
| CN107069927A (en) | Electric supply installation and illuminator | |
| CN107990238A (en) | The solar street light and its control method of a kind of mains hybrid | |
| CN1155295C (en) | Two-wire circuit equipment | |
| CN106804080B (en) | A kind of LED drive circuit and LED light | |
| JPH04223096A (en) | Modification type fluorescent system | |
| JP3630019B2 (en) | 2-wire wiring device | |
| CN202972844U (en) | Ceiling lamp capable of switching brightness levels automatically | |
| CN202972697U (en) | Down lamp capable of switching brightness levels automatically | |
| CN209882157U (en) | LED control chip and step-down drive circuit | |
| US7453215B2 (en) | Illumination system having cold cathode started, illumination controlled gas discharge lamps in series | |
| CN1244311A (en) | Apparatus for controlling AC supply switches | |
| CN207201041U (en) | Light compensating lamp | |
| CN203181278U (en) | Light source for illumination and lighting circuit thereof | |
| JP3346230B2 (en) | 2-wire wiring device | |
| RU2256845C2 (en) | Lighting unit | |
| CN108347805B (en) | Driving circuit compatible with ballast and LED device | |
| CN213991075U (en) | Solar LED control system | |
| CN220629623U (en) | Multipath dimming control circuit and LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040623 Termination date: 20151018 |
|
| EXPY | Termination of patent right or utility model |