CN103197573B - Discharge voltage regulator (DVR) power control device and DVR power control method - Google Patents
Discharge voltage regulator (DVR) power control device and DVR power control method Download PDFInfo
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- CN103197573B CN103197573B CN201310105499.8A CN201310105499A CN103197573B CN 103197573 B CN103197573 B CN 103197573B CN 201310105499 A CN201310105499 A CN 201310105499A CN 103197573 B CN103197573 B CN 103197573B
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Abstract
The invention is applied to the field of monitoring technology and provides a discharge voltage regulator (DVR) power control device and a DVR power control method. The DVR power control device is used for controlling power-on and power-off of an ATX power source. The DVR power control device comprises a voltage detection module, a control module and a switching control module. A detection end of the voltage detection module is connected with a power output port of the ATX power source. The voltage detection module is used for detecting the voltage value of the power output port of the ATX power source and outputting detection results. The control module is used for receiving the detection results, judging whether the ATX power source is in a power-on state according to the detection results and outputting a first control signal if the ATX power source is not powered on. An input end of the switching control module is connected with an output end of the control module. The switching control module is used for receiving the first control signal and sending a first driving signal to a power power-on pin of the ATX power source according to the first control signal to trigger and power on the ATX power source. The DVR power control device solves the problem that data is lost due to the fact that a DVR power source can not automatically start when the power supply recovers after power failure.
Description
Technical field
The invention belongs to digital video monitoring technical field, relate in particular to a kind of DVR power control and method.
Background technology
At present, DVR((Digital Video Recorder, digital hard disc video recorder) be the computer system of processing for video image and voice, have to video image and voice record a video for a long time, the function such as recording, telemonitoring and control.DVR equipment occupies very important status in safety monitoring, is widely used in the every field such as bank, traffic, public security, industry.
Along with the video image way that DVR processes is more and more, image resolution ratio is more and more higher, need image storage time is more and more longer, show and control function and become increasingly complex, the power supply power consumption of DVR devices consume is also increasing.Most DVR equipment uses ATX(Advanced Technology Extended, advanced technology expansion) power supply powers, so that the power supply power consumption up to 150W～500W to be provided.ATX power supply is the working power of computing machine normally, and it is converted to alternating current 220V power supply the power supplys such as direct current 12V, 5V, 3.3V, for computer system.The principal feature of ATX power supply is, whether it does not adopt traditional urban electric power switch to control power supply and works, but the combination that adopts "+5VSB, PS-ON(POWER Supply-ON; electric power starting pin) " realizes the opening and closing of power supply, as long as control the variation of " PS-ON " signal level, just can control the opening and closing of power supply.
In view of this feature of ATX power supply, once there is power failure phenomenon in civil power, in the time again restoring electricity, the DVR equipment that uses ATX Power supply conventionally can not self-opening power supply, and need to start shooting manually, in unmanned or other in particular cases likely cause recording a video for a long time loss of data.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of DVR power control, when being intended to solve traditional DVR power supply and restoring electricity after power failure, can not automatically open and the problem of the loss of data that causes recording a video.
The embodiment of the present invention is achieved in that a kind of DVR power control, is connected with ATX power supply, and for controlling the opening and closing of described ATX power supply, described DVR power control comprises:
Voltage detection module, its test side is connected with the power supply output of described ATX power supply, detects magnitude of voltage the output detections result of the power supply output of described ATX power supply;
Control module, its first input end is connected with the output terminal of described voltage detection module, receive and also judge that according to described testing result whether described ATX power supply is in opening, if described ATX power supply do not open, the first control signal of output;
Switch control module, its input end is connected with the output terminal of described control module, receives and send first according to described the first control signal to drive signal to trigger described ATX power initiation to the electric power starting pin of described ATX power supply.
Another object of the embodiment of the present invention is to provide a kind of DVR power control method, for controlling the startup of ATX power supply and closing, comprises the following steps:
S110, detects magnitude of voltage the output detections result of the power supply output of described ATX power supply;
S120, judges that according to described testing result described ATX power supply, whether in opening, if described ATX power supply is not opened, exports the first control signal;
S130, sends first according to described the first control signal and drives signal to trigger described ATX power initiation to the electric power starting pin of described ATX power supply.
Above-mentioned DVR power control detects voltage the output detections result of the power supply output of ATX power supply by voltage detection module, control module judges that according to this testing result whether ATX power supply is in work, drive signal if do not export the first control signal gauge tap control module in work to one of the electric power starting pin input of ATX power supply, trigger ATX power initiation, power on self-starting or incoming call self-starting function at DVR equipment are realized, when having solved DVR power supply and restoring electricity after power failure, can not automatically open and the problem of the loss of data that causes recording a video.
Brief description of the drawings
Fig. 1 is the module map of the DVR power control that provides of the embodiment of the present invention;
Fig. 2 is the circuit theory diagrams of the DVR power control that provides of the embodiment of the present invention;
Fig. 3 is the workflow diagram of the DVR power control method that provides of one embodiment of the invention;
Fig. 4 is the workflow diagram of the DVR power control method that provides of another embodiment of the present invention.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, show a preferred embodiment module map of DVR power control is provided, for convenience of description, only show the part relevant to the present embodiment.
A kind of DVR power control 100, it is connected with ATX power supply 200, DVR power control 100 is for controlling the opening and closing of ATX power supply 200, and described DVR power control 100 comprises: voltage detection module 120, control module 130 and switch control module 140.
The test side of voltage detection module 120 is connected with the power supply output of ATX power supply 200, and voltage detection module 120 detects magnitude of voltage the output detections result of the power supply output of ATX power supply 200; The first input end P1.1 of control module 130 is connected with the output terminal of voltage detection module 120, receive and judge that according to testing result whether ATX power supply 200 is in opening, if not unlatching of ATX power supply 200, the first control signal of exporting at its output terminal P1.2; The input end of switch control module 140 is connected with the output terminal of control module 130, and switch control module 140 receives and sends first according to the first control signal and drives signal to start to the electric power starting pin PS-ON triggering ATX power supply 200 of ATX power supply 200.
The power supply output that above-mentioned DVR power control 100 detects ATX power supply 200 by voltage detection module 120 (is used to the 5V of DVR power supply, in 12V or 3.3V power supply output one) voltage output detections result, control module 130 judges that according to this testing result whether ATX power supply 200 is in work, drive signal if do not export the first control signal gauge tap control module 140 in work to one first of the electric power starting pin PS-ON input of ATX power supply 200, ATX power supply 200 is started, power on self-starting or incoming call self-starting function at DVR equipment are realized, when having solved DVR power supply and having restored electricity after power failure, can not automatically open and the problem of the loss of data that causes recording a video.
In a preferred embodiment, DVR power control 100 also comprises switch detection module 150, its input end is connected with the second input end P1.0 of control module 130, for detection of the state of the switching on and shutting down button S1 of DVR, output detection signal after switching on and shutting down button S1 presses; Control module 130 receives after detection signal, judges that according to testing result whether ATX power supply 200 is in opening.
In the present embodiment, if ATX power supply 200 in off position, control device 100 is exported the first control signal, and switch control module 140 receives and is sent as low level first according to the first control signal and drives signal to start to the electric power starting pin PS-ON triggering ATX power supply 200 of ATX power supply 200.
If ATX power supply 200 is in opening, control module 130 is exported the second control signal gauge tap control module 130 output drive signals to close ATX power supply 200 at output terminal P1.2, and the two driving signal that switch control module 140 received and be sent as according to the second control signal high level triggers ATX power supply 200 to the electric power starting pin PS-ON of ATX power supply 200 and closes.In other embodiments, according to the different performance of ATX power supply, driving first of its startup to drive signal can be high level, and driving its two driving signal of closing can be low level.
It should be noted that, ATX power supply 200 is connected under the prerequisite of AC power, and no matter whether the power supply output (5V/12V/3.3V) of ATX power supply 200 has Voltage-output, and its standby feeder ear 5VSB all has Voltage-output.In the present embodiment, the standby feeder ear 5VSB that utilizes ATX power supply 200 is that above-mentioned voltage detection module 120, control module 130, switch control module 140 and switch detection module 150 powered; In other embodiments, can use other external power source is that above-mentioned voltage detection module 120, control module 130, switch control module 140 and switch detection module 150 powered.
Preferably, with reference to figure 2, switch detection module 150 comprises pull-up resistor R6, the first end of pull-up resistor R6 is connected with the standby feeder ear of ATX power supply 200, the second end of pull-up resistor R6 is connected with the second input end P1.0 of control module 130 and is connected the other end ground connection of switching on and shutting down button S1 with one end of switching on and shutting down button S1.The output terminal of switch detection module 150 when switching on and shutting down button S1 is not pressed, i.e. the second end output high level of pull-up resistor R6, after switching on and shutting down button S1 is pressed, the output terminal output low level of switch detection module 150, i.e. above-mentioned detection signal.
The second input end P1.0 of control module 130 receives after this detection signal, obtain again the testing result of voltage detection module 120 by first input end P1.1, judge that whether ATX power supply 200 is in opening, if in opening, control module 130 is exported the second control signal at output terminal P1.2 and is closed ATX power supply 200 so that switch control module 130 is output as the second driving signal controlling of high level; If ATX power supply 200 in off position, export the first control signal gauge tap control module 130 and be output as low level the first driving signal to open ATX power supply 200.
In a preferred embodiment, voltage detection module 120 comprises switching tube Q1, the first divider resistance R1, the second divider resistance R2 and pull-up resistor R3.
The control end of switching tube Q1 is connected with the power supply output of ATX power supply 200 through the first divider resistance R1 and through the second divider resistance R2 ground connection, the output head grounding of switching tube Q1; The input end of switching tube Q1 is connected with the first input end P1.1 of control module 130 and is connected with the standby feeder ear of ATX power supply 200 through pull-up resistor R3.
In the present embodiment, if the power supply output Non voltage output of ATX power supply 200, switching tube Q1 closes, the input end of switching tube Q1 is as the output terminal of voltage detection module 120, the testing result of output is high level, be the level constant (high level state) of the reception of the first input end P1.1 of control module 130, control module 130 judges ATX power supply 200 in off position, exports the first control signal at its output terminal P1.2; If the power supply output of ATX power supply 200 has Voltage-output, switching tube Q1 conducting, the level of the reception of the first input end P1.1 of control module 130 is low level, control module 130 judges that ATX power supply 200 is in opening, and exports the second control signal at its output terminal P1.2 in the situation that switching on and shutting down button S1 is pressed.
In a preferred embodiment, switch control module 140 comprises switching tube Q2, current-limiting resistance R4 and pull-up resistor R5.
The control end of switching tube Q2 through current-limiting resistance R4 be connected with the output terminal P1.2 of control module 130, the output head grounding of switching tube Q2, the input end of switching tube Q2 is connected with the electric power starting pin PS-ON of ATX power supply 200 and is connected with the standby feeder ear of ATX power supply 200 through pull-up resistor R5.
In the present embodiment, the in the situation that of not conducting of switching tube Q2, the electric power starting pin PS-ON of ATX power supply 200 is at high level state, and ATX power supply 200 does not start.If want ATX power supply 200 to start, the output terminal P1.2 of control module 130 output high level (the first control signal), can make the electric power starting pin PS-ON of ATX power supply 200 receive a low level, realizes and starting; If want ATX power supply 200 to close, i.e. the output terminal P1.2 output low level (the second control signal) of control module 130, can make the electric power starting pin PS-ON of ATX power supply 200 receive a high level, and realization is closed.
In addition, a kind of DVR power control method is also provided, has operated in above-mentioned control module 130 in the mode of software or soft or hard combination, DVR power control method is for controlling the startup of ATX power supply 200 and closing, in conjunction with Fig. 1,2 and 3, DVR power control method comprise the following steps:
Step S110, detects magnitude of voltage the output detections result of the power supply output of described ATX power supply 200.Specifically utilize and comprise that the voltage detection module 120 of switching tube Q1, the first divider resistance R1, the second divider resistance R2 and pull-up resistor R3 detects magnitude of voltage the output detections result of the power supply output of described ATX power supply 200.
The control end of switching tube Q1 is connected with the power supply output of ATX power supply 200 through the first divider resistance R1 and through the second divider resistance R2 ground connection, the output head grounding of switching tube Q1; The input end of switching tube Q1 is connected with the standby feeder ear of ATX power supply 200 through pull-up resistor R3, and the input end of switching tube Q1 is connected in order to output detections result as the output terminal of voltage detection module 120 and the first input end P1.1 of control module 130.
Step S120, judges that according to described testing result whether described ATX power supply 200 is in opening, if described ATX power supply 200 is not opened, exports the first control signal.Particularly, in the present embodiment, if the power supply output Non voltage output of ATX power supply 200, switching tube Q1 closes, the input end of switching tube Q1 is high level as the testing result of the output terminal output of voltage detection module 120, be the level constant (high level state) of the reception of the first input end P1.1 of control module 130, control module 130 judges ATX power supply 200 in off position, exports the first control signal at its output terminal P1.2; If the power supply output of ATX power supply 200 has Voltage-output, switching tube Q1 conducting, the level of the reception of the first input end P1.1 of control module 130 is low level, control module 130 judges that ATX power supply 200 is in opening, and exports the second control signal at its output terminal P1.2 in the situation that switching on and shutting down button S1 is pressed.
Step S130, drives signal to trigger described ATX power supply 200 to the electric power starting pin PS-ON of described ATX power supply 200 according to described the first control signal transmission first and starts.Particularly, utilization comprises that the switch control module 140 of switching tube Q2, current-limiting resistance R4 and pull-up resistor R5 composition receives the first control signal or the second control signal, and by this first control signal, the second control signal corresponding two driving signal that is output as low level the first driving signal, high level of controlling respectively.
The control end of switching tube Q2 through current-limiting resistance R4 be connected with the output terminal P1.2 of control module 130, in order to receive the first control signal or the second control signal, switching tube Q2 output head grounding, the input end of switching tube Q2 is in order to be output as the low level first two driving signal that drives signal or high level, to be connected and to be connected with the standby feeder ear of ATX power supply 200 through pull-up resistor R5 with the electric power starting pin PS-ON of ATX power supply 200.
In the present embodiment, the in the situation that of not conducting of switching tube Q2, the electric power starting pin PS-ON of ATX power supply 200 is at high level state, and ATX power supply 200 does not start.If want ATX power supply 200 to start, the output terminal P1.2 of control module 130 output high level (the first control signal), can make the electric power starting pin PS-ON of ATX power supply 200 receive a low level, realizes and starting; If want ATX power supply 200 to close, i.e. the output terminal P1.2 output low level (the second control signal) of control module 130, can make the electric power starting pin PS-ON of ATX power supply 200 receive a high level (two driving signal), and realization is closed.
Above-mentioned DVR power control method (is used to the 5V of DVR power supply by the power supply output that detects ATX power supply 200, in 12V or 3.3V power supply output one) voltage output detections result, judge that according to this testing result whether ATX power supply 200 is in work, if do not export in work low level of electric power starting pin PS-ON input (the first driving signal) that the first control signal makes ATX power supply 200, realizing ATX power supply 200 starts, power on self-starting or incoming call self-starting function at DVR equipment are so realized, when having solved DVR power supply and having restored electricity after power failure, can not automatically open and the problem of the loss of data that causes recording a video.
In a preferred embodiment, with reference to figure 4, DVR power control method is further comprising the steps of:
Step S105, the state of the switching on and shutting down button S1 of detection DVR, output detection signal after described switching on and shutting down button S1 presses, and perform step S110 and step S120, if described ATX power supply 200 is not opened, perform step S130; If described ATX power supply 200, in opening, is exported the second control signal.Specifically utilize the state of pull-up resistor R6 detector switch machine button S1, output detection signal in the time that switching on and shutting down button S1 presses.The first end of pull-up resistor R6 is connected with the standby feeder ear of ATX power supply 200, the second end of pull-up resistor R6 is connected in order to the second end of output detection signal, pull-up resistor R6 and with one end of switching on and shutting down button S1 and is connected with the second input end P1.0 of control module 130, the other end ground connection of switching on and shutting down button S1.
Particularly, control module 130 receives after detection signal, judge that according to testing result whether ATX power supply 200 is in opening, if ATX power supply 200 in off position, control device 100 is exported the first control signal, switch control module 140 receives and is sent as low level first according to the first control signal and drives the electric power starting pin PS-ON of signal to ATX power supply 200, triggers ATX power supply 200 and starts.
Step S140, triggers described ATX power supply 200 according to described the second control signal transmission high level signal to the electric power starting pin PS-ON of described ATX power supply 200 and closes.Particularly, if ATX power supply 200 is in opening, control module 130 is exported the second control signal at output terminal P1.2 and is closed ATX power supply 200 so that switch control module 130 is exported the second driving signal controlling, be that switch control module 140 receives and be sent as according to the second control signal the two driving signal of high level to the electric power starting pin PS-ON of ATX power supply 200, trigger ATX power supply 200 and close.In other embodiments, according to the different performance of ATX power supply, driving first of its startup to drive signal can be high level, and driving its two driving signal of closing can be low level.
Preferably, above-mentioned control module 130 is single-chip microcomputer, and switching tube Q1 and switching tube Q2 are NPN type triode or N-type metal-oxide-semiconductor.If switching tube Q1 and switching tube Q2 are NPN type triode, input end, output terminal, the control end of switching tube Q1 and switching tube Q2 are followed successively by collector, emitter, the base stage of NPN type triode; If switching tube Q1 and switching tube Q2 are N-type metal-oxide-semiconductor, input end, output terminal, the control end of switching tube Q1 and switching tube Q2 are followed successively by drain electrode, source electrode, the base stage of N-type metal-oxide-semiconductor.
The principle of work of DVR power control 100 and method is described with an embodiment below in conjunction with Fig. 2.
1.DVR equipment connects alternating current 220V power supply by ATX power supply 200, now the standby feeder ear 5VSB of ATX power supply 200 output standby voltage, is voltage detection module 120, control module 130(single-chip microcomputer), switch control module 140 and switch detection module 150 power.
2. single-chip microcomputer electrification reset, initialization system parameter, initialization P1.0 and P1.1 port are input port, be respectively used to detector switch machine key-press status and ATX power supply 200 power supply outputs (taking 5V delivery outlet as example) output state, initialization P1.2 port is output port, be used for exporting corresponding ATX power supply 200 switching on and shutting down instructions, i.e. the first control signal and the second control signal.
3. single-chip microcomputer detects and reads the state of first input end P1.1 port.If first input end P1.1 port is high level, the power supply output no-output (being that ATX power supply 200 is not started shooting) of ATX power supply 200 is described, the output of output port P1.2 is set to high level, after switch control module 140 is anti-phase, for the electric power starting pin PS-ON of ATX power supply 200 provides low level signal (first drives signal), ATX power supply 200 is activated, the power supplys such as power supply output output 5V/3.3V/12V, for DVR equipment provides required power supply, DVR device power-up normal start-up and operation, this has just realized power on self-starting or the incoming call self-starting function of DVR equipment.If first input end P1.1 port is low level, account for voltage detection module 120 detects that ATX power supply 200 exported 5V power supply (being that ATX power supply 200 has been started shooting), so enter switching on and shutting down button S1 state-detection process.
4. single-chip microcomputer detects and reads the state of the second input end P1.0 port.If the second input end P1.0 port is high level, illustrate that switching on and shutting down button S1 does not press.If the second input end P1.0 port is low level, illustrates that switching on and shutting down button S1 presses, and enter switching on and shutting down button S1 identification of function process.
5. single-chip microcomputer detects and reads the state of first input end P1.1 port again.If first input end P1.1 port is high level, illustrate that ATX power supply 200 not yet starts shooting, the switching on and shutting down button S1 function of now pressing is power up function, be high level so output terminal P1.2 is set, for the electric power starting pin PS-ON of ATX power supply 200 provides low level (first drives signal) starting-up signal, ATX power supply 200 is activated.If first input end P1.1 port is low level, illustrate that ATX power supply 200 started shooting, the switching on and shutting down button S1 function of now pressing is shut-off function, be low level so output port P1.2 is set, for the electric power starting pin PS-ON of ATX power supply 200 provides high level (two driving signal) off signal, ATX power supply 200 is closed.
6. above-mentioned the 4th step and the 5th step are carried out in Single Chip Microcomputer (SCM) program circulation.
7. if the alternating current 220V input power of ATX power supply 200 has a power failure or closes, the standby feeder ear 5VSB of ATX power supply 200 does not have Voltage-output yet, and single-chip microcomputer is not worked.If the alternating current 220V input power of ATX power supply 200 restores electricity, the standby feeder ear 5VSB standby power of ATX power supply 200 is normally exported, single-chip microcomputer again from the 1st step bring into operation whole detection and control function.
Above-mentioned DVR power control 100 methods (are used to the 5V of DVR power supply by the power supply output that detects ATX power supply 200, in 12V or 3.3V power supply output one) voltage output detections result, judge that according to this testing result whether ATX power supply 200 is in work, make the electric power starting pin PS-ON of ATX power supply 200 input a low level if do not export the first control signal in work, realizing ATX power supply 200 starts, power on self-starting or incoming call self-starting function at DVR equipment are realized, when having solved DVR power supply and having restored electricity after power failure, can not automatically open and the problem of the loss of data that causes recording a video.
In addition, by detector switch machine button, whether S1 is pressed, if be pressed, the second output terminal P1.0 of single-chip microcomputer can receive a detection signal, thereby single-chip microcomputer judges that according to the testing result of first input end P1.1 ATX power supply 200 is in opening or closed condition, if in opening,, in a low level of the output terminal P1.2 of single-chip microcomputer output, make the electric power starting pin PS-ON of ATX power supply 200 receive high level to close; If in off position, at a high level of the output terminal P1.2 of single-chip microcomputer output, make the electric power starting pin PS-ON of ATX power supply 200 receive low level to start.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a DVR power control, is connected with ATX power supply, for controlling the opening and closing of described ATX power supply, it is characterized in that, described DVR power control comprises:
Voltage detection module, its test side is connected with the power supply output of described ATX power supply, detects magnitude of voltage the output detections result of the power supply output of described ATX power supply;
Control module, its first input end is connected with the output terminal of described voltage detection module, receives and judges that according to described testing result described ATX power supply, whether in opening, if described ATX power supply is not opened, exports the first control signal;
Switch control module, its input end is connected with the output terminal of described control module, receives and send first according to described the first control signal to drive signal to trigger described ATX power initiation to the electric power starting pin of described ATX power supply;
Switch detection module, its input end is connected with the second input end of described control module, for detection of the state of the switching on and shutting down button S1 of DVR, output detection signal after described switching on and shutting down button S1 presses; Described control module receives after described detection signal, according to power on self-starting and the hand switch machine of ATX power supply described in described detection signal and testing result control.
2. DVR power control as claimed in claim 1, is characterized in that, described voltage detection module comprises switching tube Q1, the first divider resistance R1, the second divider resistance R2 and pull-up resistor R3, wherein,
The control end of described switching tube Q1 is connected with the power supply output of described ATX power supply and through described the second divider resistance R2 ground connection, the output head grounding of described switching tube Q1 through described the first divider resistance R1;
The input end of described switching tube Q1 is connected with the first input end of described control module and is connected with the standby feeder ear of described ATX power supply through described pull-up resistor R3.
3. DVR power control as claimed in claim 1, is characterized in that, described switch control module comprises switching tube Q2, current-limiting resistance R4 and pull-up resistor R5, wherein,
The control end of described switching tube Q2 through described current-limiting resistance R4 be connected with the output terminal of described control module, the output head grounding of described switching tube Q2, the input end of described switching tube Q2 is connected with the electric power starting pin of described ATX power supply and is connected with the standby feeder ear of described ATX power supply through described pull-up resistor R5.
4. DVR power control as claimed in claim 1, it is characterized in that, described switch detection module comprises pull-up resistor R6, the first end of described pull-up resistor R6 is connected with the standby feeder ear of described ATX power supply, the second end of described pull-up resistor R6 is connected with the second input end of described control module and is connected the other end ground connection of described switching on and shutting down button S1 with one end of described switching on and shutting down button S1.
5. a DVR power control method, for controlling the startup of ATX power supply and closing, is characterized in that, comprises the following steps:
S110, detects magnitude of voltage the output detections result of the power supply output of described ATX power supply;
S120, judges that according to described testing result described ATX power supply, whether in opening, if described ATX power supply is not opened, exports the first control signal;
S130, sends first according to described the first control signal and drives signal to trigger described ATX power initiation to the electric power starting pin of described ATX power supply;
S140, the state of the switching on and shutting down button S1 of detection DVR, output detection signal after described switching on and shutting down button S1 presses, according to power on self-starting and the hand switch machine of ATX power supply described in described detection signal and testing result control.
6. DVR power control method as claimed in claim 5, it is characterized in that, in described step S110, specifically utilize switching tube Q1, the first divider resistance R1, the second divider resistance R2 and pull-up resistor R3 to detect the magnitude of voltage of the power supply output of described ATX power supply 200, wherein
The control end of described switching tube Q1 is connected with the power supply output of described ATX power supply and through described the second divider resistance R2 ground connection, the output head grounding of described switching tube Q1 through described the first divider resistance R1;
The input end of described switching tube Q1 is connected with the standby feeder ear of described ATX power supply through described pull-up resistor R3, and the input end of described switching tube Q1 is in order to export described testing result.
7. DVR power control as claimed in claim 5, it is characterized in that, in described step S130, specifically utilize switching tube Q2, current-limiting resistance R4 and pull-up resistor R5 to receive by described the first control signal, the second control signal control and export described the first driving signal, two driving signal, wherein
The control end of described switching tube Q2 is connected to receive described the first control signal or the second control signal with current-limiting resistance R4, described switching tube Q2 output head grounding, the input end of described switching tube Q2 is in order to export described the first driving signal or two driving signal, be connected and be connected with the standby feeder ear of described ATX power supply through described pull-up resistor R5 with the electric power starting pin of described ATX power supply.
8. DVR power control as claimed in claim 5, is characterized in that, utilizes pull-up resistor R6 to detect the state of described switching on and shutting down button S1, output detection signal in the time that described switching on and shutting down button S1 presses;
The first end of described pull-up resistor R6 is connected with the standby feeder ear of described ATX power supply, and the second end of described pull-up resistor R6 is in order to export described detection signal and to be connected the other end ground connection of described switching on and shutting down button S1 with one end of described switching on and shutting down button S1.
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| CN201310105499.8A CN103197573B (en) | 2013-03-28 | 2013-03-28 | Discharge voltage regulator (DVR) power control device and DVR power control method |
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| CN201310105499.8A CN103197573B (en) | 2013-03-28 | 2013-03-28 | Discharge voltage regulator (DVR) power control device and DVR power control method |
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| CN103197573A CN103197573A (en) | 2013-07-10 |
| CN103197573B true CN103197573B (en) | 2014-06-25 |
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| CN201310105499.8A Expired - Fee Related CN103197573B (en) | 2013-03-28 | 2013-03-28 | Discharge voltage regulator (DVR) power control device and DVR power control method |
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| CN104020687B (en) * | 2014-05-14 | 2017-04-19 | 中安消技术有限公司 | ATX power source control device, method and power supply system |
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| CN100462897C (en) * | 2004-11-30 | 2009-02-18 | 鸿富锦精密工业（深圳）有限公司 | Computer system with re-starting control circuit |
| CN100583004C (en) * | 2008-02-29 | 2010-01-20 | 江苏科技大学 | Control device and method for computer ATX electric power |
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