KR102347126B1 - isolation-type power supply apparatus by use of voltage-sag compensation - Google Patents

Abstract

The present invention generally relates to an apparatus for stably supplying an operating power to a semiconductor device and the like. In particular, the present invention relates to an Insulated power supply apparatus for momentary power failure compensation, in which a momentary power failure is compensated for a device using a direct current power, such as a semiconductor device, and insulation between input and output power sources and insulation between output power channels are implemented to stably supply a high-quality operating power. According to the present invention, the operating power is stably supplied to the semiconductor device and the like by effectively compensating for the momentary power failure. In addition, according to the present invention, disorderly shutdown of the semiconductor device and the like is prevented even when a serious problem beyond the momentary power failure occurs in AC power supply. In addition, according to the present invention, a high-quality power is implemented by insulating between the input and output power sources and between the output power channels to suppress effects of power source noise and external radiation noise.

Description

Isolation-type power supply apparatus by use of voltage-sag compensation

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a device for stably supplying operating power to semiconductor equipment and the like.

In particular, the present invention compensates for an instantaneous power failure for equipment using a DC power source, such as semiconductor equipment, and implements insulation between input and output power sources and between output power channels to stably supply high-quality operating power. It relates to the power supply.

In general, instantaneous power instability occurs in industrial sites due to short circuit accidents, lightning strikes, and switching of large-capacity loads in the power system. When the AC power supply is cut off for a short period of less than 3 seconds, it is called a momentary power failure.

PLC (Programmable Logic Controller), Contator, Relay, Starter, Microcontroller, etc. composing the production facilities of the factory may be damaged by such instantaneous power outage (Voltage Sag/Dip). This can cause significant economic damage by stopping the operation of production facilities.

Accordingly, in order to prevent a loss due to a momentary power failure, a momentary power failure compensation device has been conventionally used. In general, UPS equipment (Uninterruptible Power Supply system) and VSP equipment (Voltage Sag Protector) are used. However, the UPS frequently stops due to the inrush current generated during operation of the surrounding electrical control devices, and supplies control power to the load for an excessive time without distinction between instantaneous and permanent power failures, causing side effects. In addition, UPS and VSP use batteries for energy storage, and as the performance of batteries deteriorates over time, periodic inspection and replacement of parts are required. It is quite bulky because it requires the use of a battery.

Accordingly, it is desired to improve the technology for effectively compensating for instantaneous power failure in the industrial field.

Republic of Korea Patent Registration No. 10-0852244 (08.07. 2008) "Voltage drop response device" Republic of Korea Registered Utility Model No. 20-0438765 (February 25, 2008) "Instantaneous power outage compensation device" Korean Patent Laid-Open Patent No. 10-2016-0101734 (2016.08.26) "Non-isolated instantaneous power failure compensation device using a bidirectional DC-DC converter with a soft switching operation method" Republic of Korea Patent Registration No. 10-0906603 (July 1, 2009) "Instantaneous power failure automatic recovery power supply" Republic of Korea Patent No. 10-1309009 (2013.09.10) "Instantaneous power failure compensation device and method"

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for stably supplying operating power to semiconductor equipment and the like.

In particular, it is an object of the present invention to compensate for a momentary power failure for equipment that uses a DC power source, such as semiconductor equipment, and implement insulation between input and output power sources and between output power channels to stably supply high-quality operating power. to provide an isolated power supply of

On the other hand, the problem to be solved of the present invention is not limited to these matters, and other problems to be solved can be understood from the description of the present specification.

In order to achieve the above object, the insulated power supply device of the instantaneous power failure compensation type according to the present invention is a transformer member 110 that connects an AC input power (Vin) to the primary side to generate a plurality of AC induction power from the secondary side and a plurality of mutually ground-insulated bridge members 120 for rectifying a plurality of AC induction powers, respectively, and the outputs of the plurality of bridge members 120 are individually forwardly connected to generate multi-channel rectified power sources (Vrec_CH1, Vrec_CH2) AC power rectifying unit 100 having one or more forward members 130 for outputting; DC power output unit 200 for generating multi-channel DC output power (Vout_CH1, Vout_CH2) by having a plurality of mutually ground-insulated regulators 210 and 220 receiving the multi-channel rectified power supply (Vrec_CH1, Vrec_CH2); A plurality of supercapacitor banks 301 and 302 insulated from the ground corresponding to the multi-channel are provided, and between the multi-channel rectified power sources (Vrec_CH1, Vrec_CH2) and the super capacitor bank (301, 302) is a normal power state and an instantaneous power failure state A super capacitor corresponding to multi-channel electric energy output from the AC power rectifying unit 100 to the rectified power Vrec_CH1, Vrec_CH2 in a normal power state by having a charging/discharging control unit 400 that controls charging or discharging in response to The instantaneous power failure compensation unit that stores the charge in the banks 301 and 302 and supplies power to the multi-channel rectified power sources (Vrec_CH1, Vrec_CH2) by discharging the electric energy charged in the super capacitor banks 301 and 302 in the instantaneous power failure state. (300);

In the present invention, the charging/discharging control unit 400 includes multi-channel rectified power (Vrec_CH1, Vrec_CH2) in the direction of the AC power rectifying unit 100 and multi-channel stabilizing power (Vsdc_CH1, Vsdc_CH2) in the direction of the super capacitor bank (301, 302). of the first relay member 411 connected by switching for each channel and one end of the internal relay coil RC1 is connected to the DC output power Vout_CHx of the DC power output unit 200, and the DC power output unit 200 The first capacitor 412 charged by the DC output power Vout_CHx and the first resistor 413 providing a charging path between the DC output power Vout_CHx of the DC power output unit 200 and the first capacitor 412 ) and the first capacitor 412 is switched on or off depending on the state of charge, and is connected to the other end of the relay coil RC1 of the first relay member 411 to correspond to the state of charge of the first capacitor 412 and a charge stabilization unit 410 including a first transistor 414 for controlling voltage supply to the relay coil RC1 of the first relay member 411 . Through this, when the first capacitor 412 is charged over a first preset time when the AC input power Vin is initially turned on, the first relay member 411 is rectified power by the switching of the first transistor 414 . By connecting (Vrec_CH1, Vrec_CH2) and the stabilization power supply (Vsdc_CH1, Vsdc_CH2), the failure of the instantaneous power failure compensation unit 300 due to the initial inrush current is prevented.

In addition, in the present invention, the charging and discharging control unit 400, the multi-channel stabilization power supply (Vsdc_CH1, Vsdc_CH2) in the direction of the charging stabilization unit 410 and the multi-channel charging and discharging power supply (Vchg_CH1) in the super capacitor bank (301, 302) direction , Vchg_CH2) and a second relay member 421 in which one end of the internal relay coil RC2 is connected to the DC output power Vout_CHx of the DC power output unit 200, and the AC power rectifying unit 100 The second capacitor 422 charged by the output power Vrec_CHxa of the bridge member 120, and a plurality of resistance elements are arranged in parallel to provide a plurality of discharge paths for the second capacitor 422. The second resistor Controlling the discharge time of the second capacitor 422 by selectively connecting a plurality of resistance elements connected in parallel above the array 423 and the second capacitor 422 according to a timer setting The timer member 424 and the second capacitor 422 are switched on or off by the charging and discharging states, and are connected to the other end of the relay coil RC2 of the second relay member 421 and the second capacitor 422 . A discharge time setting unit 420 configured including a second transistor 425 for controlling the voltage supply to the relay coil RC2 of the second relay member 421 in response to the charging and discharging states of the can Through this, when the power supply of the AC input power Vin is made, the second capacitor 422 is charged immediately, and the second relay member 421 is stabilized by the switching of the first transistor 414 by the stabilizing power supply (Vsdc_CH1, Vsdc_CH2). Connect the overcharge and discharge power sources (Vchg_CH1, Vchg_CH2). In addition, when an instantaneous power failure of the AC input power source Vin occurs, the second capacitor 422 is discharged over a second time according to the timer setting of the timer member 424 , and the second capacitor 422 is discharged by switching of the first transistor 414 . The relay member 421 releases the connection between the stabilizing power sources Vsdc_CH1 and Vsdc_CH2 and the charging/discharging power sources Vchg_CH1 and Vchg_CH2 .

According to the present invention, there is an advantage in that it is possible to stably supply operating power to semiconductor equipment and the like by effectively compensating for a momentary power failure.

In addition, according to the present invention, there is an advantage that can prevent disorderly shutdown of semiconductor equipment and the like even when a serious problem beyond instantaneous power failure occurs in the AC power supply.

In addition, according to the present invention, there is an advantage that high-quality power can be implemented by insulating between input and output power sources and between output power channels to suppress the effects of power source noise and external radiation noise.

1 is a block diagram showing the overall configuration of an insulated power supply device of the instantaneous power failure compensation type according to the present invention.
[Figure 2] is a view showing an embodiment of the AC power rectifying unit in the present invention.
3 is a view showing an embodiment of the DC power output unit in the present invention.
4 is a view showing an embodiment of the charge/discharge control unit in the present invention.
[Figure 5] is a view showing an embodiment of the charging stabilization unit in the present invention.
6 is a view showing an embodiment of the discharge time setting unit in the present invention.
[Figure 7] is a view showing an embodiment of the supercapacitor bank in the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a block diagram showing the overall configuration of an insulated power supply device of the instantaneous power failure compensation type according to the present invention.

The present invention is for equipment (eg, semiconductor equipment) to which direct current (DC) operating power must be input, and is a technology for compensating for momentary power failure in AC input power (Vin) and stably supplying operating power. In particular, it is a technology for supplying high-quality DC operating power in a multi-channel, and in this specification, for convenience, the case of two channels (CH1, CH2) is described as a reference.

Referring to [Fig. 1], the insulated power supply device of the instantaneous power failure compensation type according to the present invention receives the AC input power (Vin) and outputs the multi-channel rectified power (Vrec_CH1, Vrec_CH2) AC power rectifying unit 100 , DC power output unit 200 that generates multi-channel DC output power (Vout_CH1, Vout_CH2) from these rectified power sources (Vrec_CH1, Vrec_CH2) and provides it to semiconductor equipment, and compensates for instantaneous power failure in AC input power (Vin) It is provided with a momentary power failure compensation unit (300).

At this time, the instantaneous power failure compensation unit 300 includes a plurality of supercapacitor banks (301, 302) and a charge/discharge control unit (400). The supercapacitor banks 301 and 302 are components for temporarily storing electrical energy for momentary power failure compensation for each channel, and are insulated from each other to the ground. That is, in the normal power state, the electric energy output from the AC power rectifying unit 100 to the rectified power (Vrec_CH1, Vrec_CH2) is charged and stored in the super capacitor banks 301 and 302, and in the instantaneous power failure state, the super capacitor bank 301, 302) is discharged to supply power to the rectified power supplies (Vrec_CH1, Vrec_CH2) to compensate for the instantaneous power failure. In addition, the charge/discharge control unit 400 is a component that controls the charge/discharge of these supercapacitor banks (301, 302).

[Fig. 2] is a view showing an embodiment of the AC power rectifying unit 100 in the present invention, and [Fig. 3] is a view showing an embodiment of the DC power output unit 200 in the present invention.

First, referring to [Fig. 2], the AC power rectifying unit 100 includes a transformer member 110, a plurality of bridge members 121, 122; 120, and one or more forward members 131, 132; 130.

The transformer member 110 is a component that connects an AC input power source Vin (eg, AC 220V, 35W) to the primary side to generate a plurality of AC induction power corresponding to the multi-channel at the secondary side. The transformer member 110 generates a plurality of AC induction power from one AC input power Vin. The AC input power Vin and the DC power sources (eg, Vrec_CH1 and Vrec_CH2) are insulated in a circuit by the transformer member 110, thereby blocking the influence of external power noise on the DC output power Vout_CHx.

The bridge members 121 , 122 ; 120 are components that rectify each of the plurality of AC induction power generated by the transformer member 110 to generate a waveform similar to DC. These bridge members 121 and 122 are circuitly insulated from each other to the ground, and through this, it is possible to suppress external radiation noise from crossing the channel and affecting the DC output power. In the present invention, various components corresponding to multi-channels, including the bridge members 121, 122; 120, are circuitly insulated from each other to ground. To indicate this, in the drawings of the present specification, the ground indication is differently marked for each channel.

The forward members 131 , 132 ; 130 individually forwardly connect the outputs of the bridge member 120 to output multi-channel rectified power sources Vrec_CH1 and Vrec_CH2 . In the present specification, power after passing through the forward members 131, 132; 130 is denoted as Vrec_CHx, and power before passing through the forward members 131, 132; 130 is denoted as Vrec_CHxa. In the normal power state, Vrec_CHx and Vrec_CHxa are effectively the same power, but in the instantaneous power failure state, Vrec_CHx and Vrec_CHxa are completely different. While Vrec_CHx maintains the voltage level for a certain period of time by the instantaneous blackout compensator 300 , Vrec_CHxa drops to virtually zero potential immediately after the instantaneous blackout occurs.

Next, referring to [FIG. 3], the DC power output unit 200 includes a plurality of regulators 210 and 220 corresponding to the multi-channel. The regulators 210 and 220 receive multi-channel rectified power supplies Vrec_CH1 and Vrec_CH2 and generate multi-channel DC output power Vout_CH1 and Vout_CH2 according to the DC voltage desired by the user for each channel. In this case, the regulators 210 and 220 are insulated from each other by ground according to each channel.

In this case, the DC power output unit 200 may set different electrical specifications for each channel. For example, the first channel CH1 may be set with a voltage of DC 5V and a current of 3A (power of 18W), and the second channel CH2 may be set with a voltage of DC of 24V and a current of 0.8A (power of 18W). In addition, it is preferable to connect the resistor element and the LED element to the outputs of the regulators 210 and 220 for each channel to display the power output state for each channel.

[Fig. 4] is a diagram showing an embodiment of the charge/discharge control unit 400 in the present invention.

The charging/discharging control unit 400 controls charging or discharging in response to the normal power state and the instantaneous power failure state between the multi-channel rectified power supply (Vrec_CH1, Vrec_CH2) and the super capacitor bank (301, 302) in the instantaneous power failure compensation unit 300 is a component that Specifically, the electric energy output from the AC power rectifying unit 100 to the rectified powers Vrec_CH1 and Vrec_CH2 in a normal power state in which the AC input power Vin is normally supplied is converted into a multi-channel super capacitor bank 301, 302), and when the AC input power (Vin) is momentarily unstable or cut off, the electric energy charged in the supercapacitor banks (301, 302) is discharged and multi-channel rectified power (Vrec_CH1, Control operation of supplying power to Vrec_CH2) is performed. In FIG. 4 , a direction in which electric energy flows from right to left inside the charge/discharge control unit 400 is a charging direction, and a direction in which electric energy flows from left to right is a discharge direction. In the present specification, power connected between the charge/discharge control unit 400 and the supercapacitor banks 301 and 302 is referred to as charge/discharge power supply Vchg_CH1 and Vchg_CH2 for convenience.

Referring to FIG. 4 , the charge/discharge control unit 400 includes a charge stabilization unit 410 and a discharge time setting unit 420 .

When the AC input power Vin is initially turned on, a rush current in which the current rises instantaneously may occur, so the charging stabilization unit 410 controls the supercapacitor banks 301 and 302 until the inrush current ends and the power is stabilized. It functions to delay charging. To this end, the charge stabilization unit 410 transfers the rectified powers Vrec_CH1 and Vrec_CH2 of the AC power rectification unit 100 to the super capacitor banks 301 and 302 only after a predetermined time, for example, about 1 second, has elapsed after the initial power is turned on. ) to the side. The charging stabilization unit 410 preferably performs a time delay operation in units of channels. In this specification, the power delivered by the charging stabilization unit 410 after the time delay is referred to as stabilizing power (Vsdc_CH1, Vsdc_CH2) for convenience.

The discharge time setting unit 420 does not wait until the point at which the supercapacitor banks 301 and 302 are completely discharged in the case of a momentary power failure or power cut off, but for a predetermined time (eg, 1 second, 2 seconds, 3 seconds) set by the user. ), after compensating for the power, performs the function to cut off the power. This is a function that takes into account the various needs of equipment operation, for example, when it is necessary to set the start timing of the next operation according to the time when the equipment is powered off, or when it is not necessary to maintain the power for a long time. The discharge time setting unit 420 preferably transfers the stabilization powers Vsdc_CH1 and Vsdc_CH2 of the charging stabilization unit 410 as it is while charging the supercapacitor banks 301 and 302 .

[Fig. 5] is a diagram showing an embodiment of the charging stabilization unit 410 in the present invention, and [Fig. 6] is a diagram showing an embodiment of the discharge time setting unit 420 in the present invention.

5 and 6 , relay elements 411 and 421 may be used in the charge stabilization unit 410 and the discharge time setting unit 420 . Relay coils RC1 and RC2 are built in relay elements 411 and 421 . When voltage is supplied to both ends (pin 1, pin 2) of the relay coils (RC1, RC2), pins 3 and 5 are in contact, and pins 6 and 7 are in contact. On the other hand, if voltage is not supplied to both ends (pin 1 and pin 2) of the relay coils RC1 and RC2, pins 3 and 4 are in contact, and pins 6 and 8 are in contact.

4 to 6, when both the first relay member 411 and the second relay member 421 operate, the rectified power supply (Vrec_CH1, Vrec_CH2) and the stabilization power supply (Vsdc_CH1, Vsdc_CH2) The overcharge and discharge power sources Vchg_CH1 and Vchg_CH2 are all connected, so that charging and instantaneous power failure compensation (discharging) of the supercapacitor banks 301 and 302 can be performed.

As soon as the AC input power Vin is turned on, the second relay member 421 of the discharge time setting unit 420 operates, and the first relay member 411 of the charge stabilization unit 410 is set for a certain time, for example, 1 second. works after Through this, the charging of the supercapacitor banks (301, 302) is started.

When the AC input power source Vin is turned off due to a momentary power failure, the first and second transistors 414 and 425 maintain a switched-on state by the charging voltage of the first and second capacitors 412 and 422, and accordingly In the first and second relay members 411 and 421 , the rectification powers Vrec_CH1 and Vrec_CH2 , the stabilization powers Vsdc_CH1 and Vsdc_CH2 , and the charge/discharge power sources Vchg_CH1 and Vchg_CH2 are maintained as they are. In this state, the rectified power supplies Vrec_CH1 and Vrec_CH2 maintain a normal state by the electric energy charged in the supercapacitor banks 301 and 302 .

When a certain period of time, for example, 3 seconds has elapsed, the second capacitor 422 of the discharge time setting unit 420 is discharged, and the operation of the second relay member 421 stops, and the stabilizing power supply (Vsdc_CH1, Vsdc_CH2) and the charging/discharging power supply (Vchg_CH1, As the connection of Vchg_CH2) is disconnected, the momentary power failure compensation by the electric energy charged in the supercapacitor banks 301 and 302 is also stopped.

First, the configuration of the charging stabilization unit 410 will be described with reference to FIG. 5 .

The charging stabilization unit 410 includes a first relay member 411 , a first capacitor 412 , a first resistor 413 , and a first transistor 414 as main components.

The first relay member 411 is a multi-channel rectified power supply (Vrec_CH1, Vrec_CH2) in the direction of the AC power rectifying unit 100 and the multi-channel stabilization power (Vsdc_CH1, Vsdc_CH2) in the direction of the super capacitor bank (301, 302) for each channel. switch connection. Control of this switching connection is performed by an internal relay coil RC1, one end of the relay coil RC1 is connected to the DC output power Vout_CHx of the DC power output unit 200, and the other end of the relay coil RC1 is connected to the first transistor 414 . In [Fig. 5], one end of the relay coil RC1 is shown to be connected to the DC output power supply Vout_CH1 of the first channel. do. At this time, the ground ground must be changed according to the corresponding channel. Similar to this is applied to other circuit parts of the charge/discharge control unit 400 .

The first capacitor 412 is charged by the DC output power Vout_CHx of the DC power output unit 200 .

The first resistor 413 provides a charging path between the DC output power Vout_CHx of the DC power output unit 200 and the first capacitor 412 .

The first transistor 414 is switched on or off by the state of charge of the first capacitor 412 , and is connected to the other end of the relay coil RC1 of the first relay member 411 to charge the first capacitor 412 . A voltage supply to the relay coil RC1 of the first relay member 411 is controlled in response to the state.

With this configuration, the charging stabilization unit 410 is charged over a preset first time, for example, 1 second, when the first capacitor 412 is initially turned on when the AC input power Vin is turned on, and when the voltage level rises, the first capacitor 412 is charged. One transistor 414 is switched on, whereby a voltage is supplied to the relay coil RC1 of the first relay member 411 so that the first relay member 411 is connected to the rectified power sources Vrec_CH1 and Vrec_CH2 and the stabilization power Vsdc_CH1 , Vsdc_CH2) is connected. Through this, when the AC input power Vin is initially turned on, the failure of the instantaneous power failure compensation unit 300 due to the initial inrush current is prevented.

When the AC input power Vin is applied, the DC output power Vout_CH1 is supplied from the DC power output unit 200 to, for example, DC 5V, and accordingly, the first capacitor 412 is charged through the first resistor 413 . . In this case, the time taken for the first capacitor 412 to be charged may be set by the capacitance of the first capacitor 412 and the value of the first resistor 413 .

When the first capacitor 412 is sufficiently charged, a voltage is supplied to the relay coil RC1 of the first relay member 411 while the first transistor 414 operates, and accordingly, as described above, the first relay member 411 ), the 3rd pin (Vrec_CH1) and 5th pin (Vsdc_CH1) are in contact, and the 6th pin (Vrec_CH2) and 7th pin (Vsdc_CH2) are in contact.

Next, the configuration of the discharge time setting unit 420 will be described with reference to FIG. 6 .

The discharge time setting unit 420 includes a second relay member 421 , a second capacitor 422 , a second resistor array 423 , a timer member 424 , and a second transistor 425 as main components. .

The second relay member 421 channels the multi-channel stabilization power (Vsdc_CH1, Vsdc_CH2) in the direction of the charge stabilization unit 410 and the multi-channel charge/discharge power (Vchg_CH1, Vchg_CH2) in the direction of the supercapacitor bank (301, 302). Star switching connections. Control of this switching connection is performed by an internal relay coil RC2, one end of the relay coil RC2 is connected to the DC output power Vout_CHx of the DC power output unit 200, and the other end of the relay coil RC2 is connected to the second transistor 425 .

The second capacitor 422 is charged by the output power Vrec_CHxa of the bridge member 120 of the AC power rectifying unit 100 and is discharged along a path provided by the timer member 424 and the second resistor array 423 . do. Referring to FIG. 2 , the output power Vrec_CHxa of the bridge member 120 is the power at the front end of the forward member 130 , and when the AC input power Vin is stopped, immediately disappears, and the It is not restored even by the compensating operation. Accordingly, as soon as the AC input power Vin is stopped, the charging of the second capacitor 422 is also stopped.

In the second resistor array 423 , a plurality of resistor elements are arranged in parallel to provide a plurality of discharge paths for the second capacitor 422 .

The timer member 424 controls the discharge time of the second capacitor 422 by selectively connecting a plurality of resistance elements connected in parallel above the second resistor array 423 according to the timer setting with respect to the second capacitor 422 . . As the resistance element connected to the second capacitor 422 in the second resistor array 423 is different in response to the timer setting of the timer member 424, the discharge time of the second capacitor 422 is also 1 second, for example, 2 different, such as seconds, 3 seconds, etc.

The second transistor 425 is switched on or off according to the charging and discharging states of the second capacitor 422 , and is connected to the other end of the relay coil RC2 of the second relay member 421 and the second capacitor 422 . A voltage supply to the relay coil RC2 of the second relay member 421 is controlled in response to the charging and discharging states of .

With such a configuration, the discharge time setting unit 420 is immediately charged by the output power Vrec_CHxa of the bridge member 120 when the AC input power Vin is supplied, the second capacitor 422 is immediately charged to a voltage As the level rises, and accordingly, as the first transistor 414 is switched on, voltage is supplied to the relay coil RC2 of the second relay member 421 so that the second relay member 421 is stabilized power supply (Vsdc_CH1, Vsdc_CH2) ) and charging/discharging power sources (Vchg_CH1, Vchg_CH2) are connected.

In addition, the discharge time setting unit 420 is the second capacitor 422 is discharged over a second time according to the timer setting of the timer member 424 when an instantaneous power failure of the AC input power source (Vin) occurs, and the voltage level is lowered. and, accordingly, as the first transistor 414 is switched off, the voltage supply to the relay coil RC2 of the second relay member 421 is stopped, so that the second relay member 421 is stabilized power supply (Vsdc_CH1, Vsdc_CH2) Disconnect the connection between the charging and discharging power sources (Vchg_CH1, Vchg_CH2). Through this, in case of instantaneous power failure or power cut off, power is supplied only for a predetermined period of time (eg, 1 second, 2 seconds, 3 seconds) set by the user without waiting until the time when the super capacitor banks 301 and 302 are completely discharged. After compensation, the power is cut off.

[Figure 7] is a diagram showing an embodiment of the supercapacitor bank (301, 302) in the present invention.

Referring to [Fig. 7], 5 supercapacitors (3V, 10F) are connected to each channel, and after charging a voltage of 15V in a normal state, the charged electric energy is utilized when the power is cut off or a momentary power failure is used for power. It is designed to compensate for The supercapacitor banks 301 and 302 are also ground-insulated from each other for each channel.

[Table 1] shows an example of the technical specifications of the insulated power supply device of the instantaneous blackout compensation type according to the present invention, and [Table 2] is the instantaneous blackout compensation of the instantaneous blackout compensation type insulated power supply device according to the present invention The characteristics are shown in comparison with the prior art.

Performance note input power AC 220V, 35W Output power (2 channels) DC 5V~24V, 18W Output specification selectable regulator DC 5V~24V, 18W charging capacity 5 super capacitors (10F, 3V) 5 supercapacitors per channel Select power off time 1 sec, 2 sec, 3 sec selectable

Prior art (VSP, UPS) the present invention input power AC 110V~220V AC 110V~220V output power AC 110V~220V DC 5V~24V Isolation between outputs not insulated Isolation between output channels momentary power outage compensation AC supplied by battery DC supply with super capacitor

100: AC power rectifying unit
110: no transformer
120: no bridge
130: forward member
200: DC power output unit
210, 220: regulator
300: momentary power failure compensation unit
301, 302: Super capacitor bank
400: charge/discharge control unit
410: charging stabilization unit
420: discharge time setting unit
411, 421: relay absence
424: timer absent

Claims (3)

A transformer member 110 for generating a plurality of AC induced power from the secondary side by connecting the AC input power Vin to the primary side, and a plurality of mutually ground-insulated bridge members 120 for rectifying the plurality of AC induced power sources, respectively ) and one or more forward members 130 for outputting multi-channel rectified power (Vrec_CH1, Vrec_CH2) by individually forwardly connecting the outputs of the plurality of bridge members 120;
DC power output unit 200 for generating multi-channel DC output power (Vout_CH1, Vout_CH2) by providing a plurality of mutually ground-insulated regulators 210 and 220 receiving the multi-channel rectified power supply (Vrec_CH1, Vrec_CH2) ;
A plurality of supercapacitor banks 301 and 302 insulated from the ground corresponding to the multi-channel are provided, and between the rectified powers Vrec_CH1 and Vrec_CH2 of the multi-channel and the supercapacitor banks 301 and 302 are in a normal power state and Equipped with a charge/discharge control unit 400 for controlling charging or discharging in response to an instantaneous power failure state, the electric energy output from the AC power rectifying unit 100 to the rectified power sources (Vrec_CH1, Vrec_CH2) in a normal power state is converted into the multi Charge and store in the supercapacitor banks 301 and 302 corresponding to the channel, and discharge the electric energy charged in the supercapacitor banks 301 and 302 in the instantaneous power failure state to the rectified power supply (Vrec_CH1, Vrec_CH2) of the multi-channel Instantaneous power failure compensation unit 300 for supplying power;
consists of,
The charge/discharge control unit 400,
The multi-channel rectified power (Vrec_CH1, Vrec_CH2) in the direction of the AC power rectifying unit 100 and the multi-channel stabilizing power (Vsdc_CH1, Vsdc_CH2) in the direction of the supercapacitor bank (301, 302) are switched for each channel, and the internal The first relay member 411 having one end of the relay coil RC1 connected to the DC output power Vout_CHx of the DC power output unit 200, and the DC output power Vout_CHx of the DC power output unit 200 A first capacitor 412 charged by It is switched on or off according to the state of charge of the first capacitor 412 , and is connected to the other end of the relay coil RC1 of the first relay member 411 to correspond to the state of charge of the first capacitor 412 . A charging stabilization unit 410 configured including a first transistor 414 for controlling the voltage supply to the relay coil RC1 of the first relay member 411;
When the first capacitor 412 is charged over a first preset time when the AC input power Vin is initially turned on, the first relay member 411 is activated by the switching of the first transistor 414 . By connecting the rectified power supply (Vrec_CH1, Vrec_CH2) and the stabilization power supply (Vsdc_CH1, Vsdc_CH2) to prevent the failure of the instantaneous power failure compensation unit 300 due to the initial inrush current supply device.
delete The method according to claim 1,
The charge/discharge control unit 400,
The multi-channel stabilization power supply (Vsdc_CH1, Vsdc_CH2) in the direction of the charging stabilization unit 410 and the multi-channel charging/discharging power supply (Vchg_CH1, Vchg_CH2) in the direction of the supercapacitor bank 301 and 302 are switched and connected, and an internal relay coil is connected. The second relay member 421 having one end of (RC2) connected to the DC output power Vout_CHx of the DC power output unit 200, and the output power of the bridge member 120 of the AC power rectifying unit 100 A second capacitor 422 charged by (Vrec_CHxa) and a second resistor array 423 in which a plurality of resistor elements are arranged in parallel to provide a plurality of discharge paths for the second capacitor 422; A timer member 424 for controlling the discharge time of the second capacitor 422 by selectively connecting the plurality of parallel-connected resistance elements of the second resistor array 423 according to a timer setting with respect to the second capacitor 422 . ) and the second capacitor 422 is switched on or off according to the charging and discharging states, and is connected to the other end of the relay coil RC2 of the second relay member 421 and the second capacitor 422 is A discharge time setting unit 420 comprising a second transistor 425 for controlling the voltage supply to the relay coil RC2 of the second relay member 421 in response to the charging and discharging states;
When the AC input power source Vin is supplied with power, the second capacitor 422 is immediately charged, and the second relay member 421 activates the stabilization power source Vsdc_CH1 by switching the first transistor 414. Vsdc_CH2) and the charging and discharging power sources (Vchg_CH1, Vchg_CH2) are connected,
When an instantaneous power failure of the AC input power source Vin occurs, the second capacitor 422 is discharged over a second time period according to the timer setting of the timer member 424, and by switching of the first transistor 414, the second capacitor 422 is discharged. The second relay member 421 is configured to release the connection between the stabilizing power supply (Vsdc_CH1, Vsdc_CH2) and the charging/discharging power supply (Vchg_CH1, Vchg_CH2).

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