CN113589915A - Shutdown energy-saving display circuit and display - Google Patents

Shutdown energy-saving display circuit and display Download PDF

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Publication number
CN113589915A
CN113589915A CN202110869725.4A CN202110869725A CN113589915A CN 113589915 A CN113589915 A CN 113589915A CN 202110869725 A CN202110869725 A CN 202110869725A CN 113589915 A CN113589915 A CN 113589915A
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China
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power
display
circuit
resistor
module
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CN202110869725.4A
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CN113589915B (en
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潘小红
黎旭
沈峻
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Shenzhen Century Innovation Display Electronics Co ltd
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Shenzhen Century Innovation Display Electronics Co ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/36—Means for starting or stopping converters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Rectifiers (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention discloses a shutdown energy-saving display circuit, which comprises an alternating current power supply switch module, a power supply control module and a power supply control module, wherein the input end of the alternating current power supply switch module is connected with commercial power and is used for controlling the AC-DC power supply module to be turned on and off; the input end of the AC-DC power supply module is connected with the output end of the AC power supply switch module, and the AC-DC power supply module converts AC commercial power into DC power to supply power to the display; the input end of the display load module is connected with the output end of the AC-DC power supply module; after the display is shut down, the alternating current power supply switch module cuts off direct current of the display so as to reduce shutdown power of the display. The invention further reduces the power consumption of the display under shutdown, the MCU of the display does not consume electric energy and the AC-DC power supply of the display does not work any more in the shutdown state, and the display saves more energy after shutdown.

Description

Shutdown energy-saving display circuit and display
Technical Field
The invention relates to the technical field of display devices, in particular to a shutdown energy-saving display circuit and a display.
Background
Energy conservation is an important social awareness in the world today, and refers to a series of actions that reduce energy consumption and increase energy utilization as much as possible. The energy-saving definition proposed by the world energy commission in 1979 is: all measures which are feasible technically, reasonable economically and acceptable environmentally and socially are adopted to improve the utilization efficiency of energy resources. At present, people can not leave computers for work, entertainment, study and other activities. The power switch of the common display is a software switch. The software switch is connected to the IO port of the MCU. The MCU detects the high and low electric potentials of the IO port to control the startup and shutdown of the display. However, in the off state, the MCU of the display still consumes power and the ac-to-dc power supply of the display still works, so there is still a certain power consumption. At present, power switches of a common display are all software switches, an alternating current to direct current switching power supply of the display still works after the display is turned off, and the alternating current to direct current switching power supply consumes electric energy when the alternating current to direct current switching power supply still works.
Therefore, the power-off energy-saving display circuit and the display are provided, the power consumption of the display under the power-off state is further reduced, and the display can save more energy after being powered off.
Disclosure of Invention
The invention aims to provide a shutdown energy-saving display circuit to solve the problems that an AC-to-DC switching power supply of a display still works after the display is shut down, and the AC-to-DC switching power supply still works to consume electric energy.
In order to achieve the purpose, the invention provides the following technical scheme:
a power-off, energy-saving display circuit, comprising:
the input end of the alternating current power supply switch module is connected with commercial power and is used for controlling the AC-DC power supply module to be switched on and off;
the input end of the AC-DC power supply module is connected with the output end of the AC power supply switch module, and the AC-DC power supply module converts AC commercial power into DC power to supply power to the display;
the input end of the display load module is connected with the output end of the AC-DC power supply module;
after the display is shut down, the alternating current power supply switch module cuts off direct current of the display so as to reduce shutdown power of the display.
Furthermore, the alternating current power switch module comprises an alternating current fuse, a bridge rectifier circuit, a voltage reduction resistor, a rectifier circuit, a voltage stabilizing circuit, a power switch, a trigger circuit and a switch control circuit; live wire L is connected to the one end of alternating current fuse, another termination of alternating current fuse is bridge rectifier's first end, bridge rectifier's second termination zero line N, bridge rectifier's second end ground connection, bridge rectifier's fourth termination step-down resistance input end, step-down resistance output termination rectifier and voltage stabilizing circuit, power switch's first end is connected to the voltage stabilizing circuit output, power switch's both ends contact the both ends input of circuit, trigger circuit's output connection switch control circuit input, the AC-DC power module is connected to the switch control circuit output.
Further, the trigger circuit comprises a first unidirectional silicon controlled rectifier SCR1, a second unidirectional silicon controlled rectifier SCR2, a diode D5, a diode D6, a capacitor C2, a resistor R3, a resistor R4, a resistor R5 and a resistor R6; one end of a resistor R3 is connected with a voltage stabilizing output end, the other end of the resistor R3 is connected with a first end of a power switch, the anode of a first unidirectional silicon controlled rectifier SCR1 is connected with the first end of the power switch, the trigger electrode of the first unidirectional silicon controlled rectifier SCR1 is connected with the cathode of a diode D6, the anode of the diode D6 is connected with the second end of the power switch, the cathode of the first unidirectional silicon controlled rectifier SCR1 is connected with the input end of a switch circuit through a resistor R4, the cathode of the first unidirectional silicon controlled rectifier SCR1 is connected with the anode of a diode D5 through a resistor R5, the cathode of the diode D5 is connected with one end of a capacitor C2, the other end of the capacitor C2 is grounded, the anode of a second unidirectional silicon controlled rectifier SCR2 is connected with the second end of the power switch, the trigger electrode of the second unidirectional silicon controlled rectifier SCR2 is connected with the cathode of the diode D5, and the cathode of the second unidirectional silicon controlled rectifier SCR2 is grounded.
Further, the switch control circuit comprises an optical isolator U1, a resistor R2 and a triac SCR 3; the first end of the optical isolator U1 contacts the output end of the power circuit, the second end of the optical isolator U1 is grounded, the fourth end of the optical isolator U1 is connected with the T1 end of the bidirectional thyristor SCR3 through the resistor R2, the sixth end of the optical isolator U1 is connected with the G end of the bidirectional thyristor SCR3, the T1 end of the bidirectional thyristor SCR3 is connected with the live wire L, and the T2 end of the bidirectional thyristor SCR3 is connected with the AC-DC power supply module.
Further, the voltage stabilizing circuit comprises a zener diode ZD1, the anode of the zener diode ZD1 is connected to the output end of the voltage stabilizing resistor, and the cathode of the zener diode ZD1 is grounded.
Furthermore, the filter circuit comprises a capacitor C1, one end of the capacitor C1 is connected with the output end of the voltage-stabilizing resistor, and the other end is grounded.
Further, the optical isolator U1 is model MOC 3012.
The present invention further provides a display, characterized in that: comprising a power-off energy saving display circuit as defined in any of the previous claims.
Compared with the prior art, the invention has the beneficial effects that:
the AC-DC switching power supply of the display does not work after the display is turned off, the AC-DC switching power supply does not consume electric energy when the AC-DC switching power supply works, the power consumption of the display is further reduced when the display is turned off, the MCU of the display does not consume electric energy when the display is turned off, and the AC-DC switching power supply of the display does not work any more, so that the display is more energy-saving after the display is turned off.
Drawings
FIG. 1 is a block diagram of the circuit configuration of the present invention;
FIG. 2 is a schematic diagram of the circuit configuration of the present invention;
fig. 3 is a circuit diagram of an ac power switch module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a power-off, energy-saving display circuit, comprising: the input end of the alternating current power supply switch module is connected with commercial power and is used for controlling the AC-DC power supply module to be switched on and off and controlling the AC-DC power supply module to be connected with the commercial power or not; the input end of the AC-DC power supply module is connected with the output end of the AC power supply switch module, and the AC-DC power supply module converts AC commercial power into DC power to supply power to the display; the input end of the display load module is connected with the output end of the AC-DC power supply module; after the display is shut down, the alternating current power supply switch module cuts off direct current of the display so as to reduce shutdown power of the display. The display circuit consists of an alternating current power supply switch module, an AC-DC power supply module, a display load module and other display circuit modules, wherein the alternating current power supply switch module has the function of controlling the on and off of the AC-DC power supply module, and the AC-DC module converts alternating current commercial power into direct current to supply power to the display. When the display is started, the alternating current power supply switch module is switched on, and the display works normally. When the display is turned off, the alternating current power supply module is turned off, and the display enters a power-off state.
Further, the alternating current power switch module comprises an alternating current fuse F1, a bridge rectifier circuit, a voltage reduction resistor, a rectifier circuit, a voltage stabilizing circuit, a power switch, a trigger circuit and a switch control circuit; live wire L is connected to the one end of AC fuse, another termination of AC fuse is bridge rectifier circuit's first end, bridge rectifier circuit's second termination zero line N, bridge rectifier circuit's second end ground connection, bridge rectifier circuit's fourth termination step-down resistance input end, step-down resistance output end rectifier filter circuit and voltage stabilizing circuit, power switch's first end is connected to the voltage stabilizing circuit output end, power switch's both ends contact the both ends input of generating circuit, trigger circuit's output end connection switch control circuit input end, AC-DC power module is connected to the switch control circuit output. As shown in fig. 2-3, the ac fuse is connected to the live line L, which can perform an overload protection function to protect the circuit from safe operation, and the ac fuse can be replaced by an ac fuse or the like; the bridge rectifier circuit comprises four diodes, a diode D1, a diode D2, a diode D3 and a diode D4, wherein the anode of the diode D1 and the cathode of the diode D2 are connected in common (an input end) and then connected with the output end of an alternating current fuse F1, the anode of the diode D2 and the anode of the diode D3 are connected in common and then grounded, the anode of the diode D4 and the cathode of the diode D3 are connected in common (an input end) and then connected with a zero line L, the cathode of the diode D1 and the cathode of the diode D4 are connected in common (an output end) and then connected with the input end of a step-down resistor R1, the bridge rectifier circuit converts alternating current into direct current, and the required voltage can be obtained after the step-down resistor R1; the output end of the voltage reduction resistor R1 is connected with a rectification filter circuit and a voltage stabilizing circuit, the rectification filter circuit can further isolate alternating current and provide direct current, alternating current components in the direct current voltage are reduced as much as possible, and the voltage stabilizing circuit can enable the output end of the voltage reduction resistor R1 to become a stable direct current power supply output end; the two ends (pin 2 and pin 1 of K1) of the power switch are respectively connected with the two input ends of the trigger circuit, the trigger circuit is used for controlling the on-off of the switch control circuit according to whether the on-off condition of the power switch generates trigger breakover voltage or not, and controlling the on-off of the switch control circuit so as to control the on-off of the commercial power, namely controlling the on-off of the live wire to control whether the power is supplied to the AC-DC power supply module or not, and controlling the power supply condition of the display load module, so that the display is turned off and then all loads of the display are turned off, and the display is more energy-saving after being turned off. According to the invention, the power supply conditions of the AC-DC power supply module and the display load module are controlled by controlling the on-off of the AC power supply switch module, specifically, the on-off of the AC commercial power live wire L, so that all loads of the display are turned off after the display is shut down, and the energy-saving effect is achieved.
Further, the trigger circuit comprises a first unidirectional silicon controlled rectifier SCR1, a second unidirectional silicon controlled rectifier SCR2, a diode D5, a diode D6, a capacitor C2, a resistor R3, a resistor R4, a resistor R5 and a resistor R6; one end of a resistor R3 is connected with a voltage stabilizing output end, the other end of the resistor R3 is connected with a first end of a power switch, the anode of a first unidirectional silicon controlled rectifier SCR1 is connected with the first end of the power switch, the trigger electrode of the first unidirectional silicon controlled rectifier SCR1 is connected with the cathode of a diode D6, the anode of the diode D6 is connected with the second end of the power switch, the cathode of the first unidirectional silicon controlled rectifier SCR1 is connected with the input end of a switch circuit through a resistor R4, the cathode of the first unidirectional silicon controlled rectifier SCR1 is connected with the anode of a diode D5 through a resistor R5, the cathode of the diode D5 is connected with one end of a capacitor C2, the other end of the capacitor C2 is grounded, the anode of a second unidirectional silicon controlled rectifier SCR2 is connected with the second end of the power switch, the trigger electrode of the second unidirectional silicon controlled rectifier SCR2 is connected with the cathode of the diode D5, and the cathode of the second unidirectional silicon controlled rectifier SCR2 is grounded. As shown in fig. 2-3, the voltage regulator circuit can make the output terminal of the voltage reduction resistor R1 or the output terminal of the voltage regulator circuit become a stable dc power supply at point "a" after voltage stabilization, and the dc high potential at point "a" is added to pin 2 (anode) of the first one-way thyristor SCR1 and pin 1 of the power switch K1 after passing through the resistor R3, wherein the power switch K1 is a tact switch, pin 1 and pin 2 of the power switch K1 are open circuit when not pressed, pin 1 and pin 2 of the power switch K1 are short circuit when the user presses the tact key, and pin 1 and pin 2 of the power switch K1 are open circuit when the user releases the tact switch.
As shown in fig. 2-3, in the ac power-on state, when the power switch K1 is not pressed, when the high potential of pin 1 of the power switch K1 cannot be applied to the anode of the diode D6, the anode of the diode D6 is low potential, the cathode of the diode D6 is also low potential, the cathode of the diode D6 is connected to pin 3 (trigger electrode) of the SCR1, the trigger electrode of the first unidirectional silicon controlled rectifier SCR1 has no trigger voltage to turn off pin 2 and pin 1 of the first unidirectional silicon controlled rectifier SCR1, pin 1 of the first unidirectional silicon controlled rectifier SCR1 is low potential, the output end of the trigger circuit outputs low voltage to the switch control circuit, the switch control circuit does not work, the switch control circuit does not supply power to the display load module, at this time, the display load module does not supply power to turn off the display, and does not consume energy.
After alternating current is electrified, the alternating current is switched to a power-on state, a direct current high potential at a point A is added to a pin 1 of a power switch K1 and a pin 2 of a first one-way silicon controlled rectifier SCR1 after passing through a resistor R3, a user presses a light touch switch power switch K1, the pin 1 and the pin 2 of the power switch K1 are short-circuited, then the direct current high potential at the point A passes through a resistor R3, a power switch K1 and a diode D6 and is added to a pin 3 of the first one-way silicon controlled rectifier SCR1, then the pin 2 and the pin 1 of the first one-way silicon controlled rectifier SCR1 are conducted, the pin 1 of the first one-way silicon controlled rectifier SCR1 is high potential, the output end of a trigger circuit outputs high voltage to a switch control circuit, the switch control circuit works, and the switch control circuit controls power supply to a display load module; meanwhile, the high potential at the point "A" charges the capacitor C2 through the resistor R3, the pin 2 to the pin 1 of the first unidirectional silicon controlled rectifier SCR1, the resistor R5 and the anode to the cathode of the diode D5. After the user presses the light touch switch power switch K1, the switch control circuit switches on the commercial power, the AC-DC module is normally powered, and the display is normally started.
When the computer is started to a power-off state, after a user lightly touches a key of a power switch K1, the voltage at two ends of a capacitor C2 is used as trigger voltage of a pin 3 of a second unidirectional silicon controlled rectifier SCR2, the positive voltage of the capacitor C2 is loaded to the pin 3 (trigger electrode) of a second unidirectional silicon controlled rectifier SCR2 after passing through a resistor R6, so that a pin 2 and a pin 1 of the second unidirectional silicon controlled rectifier SCR2 are conducted (at the moment, the capacitor C2 passes through the resistor R6, the pin 3 of the second unidirectional silicon controlled rectifier SCR2 discharges to the other end of the capacitor C2), at the moment, a pin 2 and a pin 1 of the key power switch K1 are also conducted, then the anode of the pin 2 of the first unidirectional silicon controlled rectifier SCR1 is changed into a low potential, the pin 2 and the pin 1 of the first unidirectional silicon controlled rectifier SCR1 are disconnected, then the pin 1 of the first unidirectional silicon controlled rectifier SCR1 is also changed into a low potential, and the pin 1 of the first unidirectional silicon controlled rectifier 1 has a low potential, and the output end of the trigger circuit outputs low voltage to a switch control circuit, the switch control circuit does not work, the switch control circuit controls the display load module not to be powered on, the alternating current is cut off, the AC-DC power supply module stops working after the alternating current is not supplied, and the display is turned off.
Further, the switch control circuit comprises an optical isolator U1, a resistor R2 and a bidirectional thyristor SCR; the first end of the optical isolator U1 contacts the output end of the power circuit, the second end of the optical isolator U1 is grounded, the fourth end of the optical isolator U1 is connected with the T1 end of the bidirectional thyristor SCR3 through the resistor R2, the sixth end of the optical isolator U1 is connected with the G end of the bidirectional thyristor SCR3, the T1 end of the bidirectional thyristor SCR3 is connected with the live wire L, and the T2 end of the bidirectional thyristor SCR3 is connected with the AC-DC power supply module. When the alternating current is electrified, the output end of the trigger circuit outputs low voltage to the switch control circuit, the low potential of the pin 1 of the first unidirectional silicon controlled rectifier SCR1 is added to one end of the resistor R4, the two ends of the resistor R4 are both low potentials, so that the low potential of the pin 1 of the optical isolator U1 enables the pin 6 and the pin 4 of the U1 to be turned off, then the G pole of the bidirectional silicon controlled rectifier SCR3 is turned off, the T1 pole and the T2 pole of the bidirectional silicon controlled rectifier SCR3 are turned off, the switch control circuit does not work, the alternating current is cut off, the AC-DC power supply module stops working after no alternating current exists, and the display does not start after no alternating current is supplied. When the alternating current is switched to a power-on state after being electrified, then a pin 2 and a pin 1 of the first one-way silicon controlled rectifier SCR1 are conducted, the output end of the trigger circuit outputs high voltage to the switch control circuit, then the high voltage passes through the resistor R4 and is added to a pin 1 of the optical isolator U1, the high potential of the pin 1 of the optical isolator U1 enables the pin 1 and the pin 2 of the optical isolator U1 to be conducted, at the moment, a pin 6 and a pin 4 of the optical isolator U1 are also conducted, the pin 6 and the pin 4 of the optical isolator U1 are conducted, then the alternating current power supply is added to a G pole of the two-way silicon controlled rectifier SCR3 through the resistor R2, so that the ends T1 and T2 of the two-way silicon controlled rectifier 3 are conducted, the ends T1 and T2 of the two-way silicon controlled rectifier SCR3 are conducted, the alternating current commercial power is turned on, the alternating current is normally supplied to the AC-DC module after the commercial power is turned on, and the display is normally turned on. When the power-on and power-off state is achieved, the output end of the trigger circuit outputs low voltage to the switch control circuit, pin 1 of the first one-way silicon controlled rectifier SCR1 also becomes low potential, the low potential enables one end of the resistor R4 to also become low potential, then an internal light emitting diode of the optical isolator U1 is extinguished, pin 6 and pin 4 of the optical isolator U1 are disconnected, the pin G of the two-way silicon controlled rectifier SCR3 cannot be driven after the pin 6 and the pin 4 of the optical isolator U1 are disconnected, the pole T1 and the pole T2 of the two-way silicon controlled rectifier SCR3 are disconnected, therefore, alternating current is cut off, the AC-DC power supply module stops working after no alternating current exists, and the display is turned off.
Furthermore, as shown in fig. 3, in order to provide a stable voltage, the voltage stabilizing circuit includes a zener diode ZD1, the anode of the zener diode ZD1 is connected to the output end of the voltage stabilizing resistor, and the cathode of the zener diode ZD1 is grounded.
Furthermore, as shown in fig. 3, in order to convert ac power into dc power and perform filtering, the filter circuit includes a capacitor C1, one end of the capacitor C1 is connected to the output end of the voltage regulator resistor, and the other end is grounded.
Further, the opto-isolator U1 is model MOC3012, and as shown in FIG. 3, opto-isolator U1 has 6 pins, of which pin 3 and pin 5 are not connected.
Further, the present invention provides a display, characterized in that: comprising a power-off energy saving display circuit as defined in any of the previous claims.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1.一种关机节能显示器电路，其特征在于，包括：1. A shutdown energy-saving display circuit, characterized in that, comprising: 交流电源开关模块，其输入端接市电，用于控制AC-DC电源模块开启和关闭；The AC power switch module, the input terminal of which is connected to the commercial power, is used to control the AC-DC power module to be turned on and off; AC-DC电源模块，其输入端连接交流电源开关模块输出端，将交流市电转换为直流电给显示器供电；The AC-DC power supply module, the input end of which is connected to the output end of the AC power switch module, converts the AC mains power into DC power to supply power to the display; 显示器负载模块，其输入端连接AC-DC电源模块输出端；The display load module, whose input end is connected to the output end of the AC-DC power module; 显示器关机后交流电源开关模块切断了显示器的直流电，以降低显示器的关机功率。After the display is turned off, the AC power switch module cuts off the DC power of the display to reduce the shutdown power of the display. 2.根据权利要求1所述的关机节能显示器电路，其特征在于：交流电源开关模块包含交流保险丝、桥式整流电路、降压电阻、滤波电路、稳压电路、电源开关、触发电路和开关控制电路；交流保险丝的一端连接火线L，交流保险丝的另一端接桥式整流电路的第一端，桥式整流电路的第二端接零线N，桥式整流电路的第二端接地，桥式整流电路的第四端接降压电阻输入端，降压电阻输出端接滤波电路和稳压电路，稳压电路输出端连接电源开关的第一端，电源开关的两端接触发电路的两输入端，触发电路的输出端连接开关控制电路输入端，开关控制电路输出端连接AC-DC电源模块。2. The power-off energy-saving display circuit according to claim 1, wherein the AC power switch module comprises an AC fuse, a bridge rectifier circuit, a step-down resistor, a filter circuit, a voltage regulator circuit, a power switch, a trigger circuit and a switch control Circuit; one end of the AC fuse is connected to the live wire L, the other end of the AC fuse is connected to the first end of the bridge rectifier circuit, the second end of the bridge rectifier circuit is connected to the neutral wire N, the second end of the bridge rectifier circuit is grounded, the bridge type The fourth end of the rectifier circuit is connected to the input end of the step-down resistor, the output end of the step-down resistor is connected to the filter circuit and the voltage stabilizer circuit, the output end of the voltage stabilizer circuit is connected to the first end of the power switch, and the two ends of the power switch are connected to the two inputs of the trigger circuit The output end of the trigger circuit is connected to the input end of the switch control circuit, and the output end of the switch control circuit is connected to the AC-DC power supply module. 3.根据权利要求2所述的关机节能显示器电路，其特征在于：触发电路包含第一单向可控硅SCR1、第二单向可控硅SCR2、二极管D5、二极管D6、电容C2、电阻R3、电阻R4、电阻R5和电阻R6；电阻R3一端接稳压输出端，另一端接电源开关的第一端，第一单向可控硅SCR1的阳极接电源开关的第一端，第一单向可控硅SCR1的触发极接二极管D6的负极，二极管D6的正极接电源开关的第二端，第一单向可控硅SCR1的阴极经过电阻R4接开关电路输入端，第一单向可控硅SCR1的阴极经过电阻R5接二极管D5正极，二极管D5负极接电容C2的一端，电容C2的另一端接地，第二单向可控硅SCR2的阳极接电源开关的第二端，第二单向可控硅SCR2的触发极接二极管D5的负极，第二单向可控硅SCR2的阴极接地。3. The power-off energy-saving display circuit according to claim 2, wherein the trigger circuit comprises a first one-way thyristor SCR1, a second one-way thyristor SCR2, a diode D5, a diode D6, a capacitor C2, and a resistor R3 , resistor R4, resistor R5 and resistor R6; one end of resistor R3 is connected to the voltage regulator output end, the other end is connected to the first end of the power switch, the anode of the first one-way thyristor SCR1 is connected to the first end of the power switch, and the first single end is connected to the first end of the power switch. The trigger electrode of the thyristor SCR1 is connected to the cathode of the diode D6, the anode of the diode D6 is connected to the second end of the power switch, and the cathode of the first one-way thyristor SCR1 is connected to the input end of the switch circuit through the resistor R4. The cathode of the thyristor SCR1 is connected to the anode of the diode D5 through the resistor R5, the cathode of the diode D5 is connected to one end of the capacitor C2, the other end of the capacitor C2 is grounded, and the anode of the second one-way thyristor SCR2 is connected to the second end of the power switch. The trigger electrode of the thyristor SCR2 is connected to the cathode of the diode D5, and the cathode of the second one-way thyristor SCR2 is grounded. 4.根据权利要求2所述的关机节能显示器电路，其特征在于：开关控制电路包括光隔离器U1、电阻R2和双向可控硅SCR3；光隔离器U1的第一端接触发电路输出端，光隔离器U1的第二端接地，光隔离器U1的第四端经过电阻R2连接双向可控硅SCR3的T1端，光隔离器U1的第六端连接双向可控硅SCR3的G端，双向可控硅SCR的T1端接火线L，双向可控硅SCR3的T2端接AC-DC电源模块。4. The power-off energy-saving display circuit according to claim 2, wherein the switch control circuit comprises an optical isolator U1, a resistor R2 and a triac SCR3; the first end of the optical isolator U1 contacts the output end of the trigger circuit, The second terminal of the optical isolator U1 is grounded, the fourth terminal of the optical isolator U1 is connected to the T1 terminal of the triac SCR3 through the resistor R2, and the sixth terminal of the optical isolator U1 is connected to the G terminal of the triac SCR3. The T1 end of the thyristor SCR is connected to the live wire L, and the T2 end of the bidirectional thyristor SCR3 is connected to the AC-DC power module. 5.根据权利要求3或4所述的关机节能显示器电路，其特征在于：稳压电路包含稳压二极管ZD1，稳压二极管ZD1的正极连接稳压电阻输出端，稳压二极管ZD1的负极接地。5. The power-off energy-saving display circuit according to claim 3 or 4, wherein the voltage stabilizing circuit comprises a zener diode ZD1, the positive electrode of the zener diode ZD1 is connected to the output end of the voltage stabilizing resistor, and the negative electrode of the zener diode ZD1 is grounded. 6.根据权利要求5所述的关机节能显示器电路，其特征在于：滤波电路包含电容C1，电容C1的一端接稳压电阻输出端，另一端接地。6 . The power-off energy-saving display circuit according to claim 5 , wherein the filter circuit comprises a capacitor C1 , one end of the capacitor C1 is connected to the output end of the voltage regulator resistor, and the other end is grounded. 7 . 7.根据权利要求6所述的关机节能显示器电路，其特征在于：光隔离器U1的型号为MOC3012。7 . The power-off energy-saving display circuit according to claim 6 , wherein the model of the optical isolator U1 is MOC3012. 8 . 8.一种显示器，其特征在于：包含如权利要求1-7任一项所述的关机节能显示器电路。8. A display, characterized by comprising the power-off power-saving display circuit according to any one of claims 1-7.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001337656A (en) * 2000-05-29 2001-12-07 Matsushita Electric Ind Co Ltd Liquid crystal display device
CN1449113A (en) * 2003-04-30 2003-10-15 王稳忠 Microprocessor controlled AC switch circuit
CN203225836U (en) * 2013-04-28 2013-10-02 深圳市创维群欣安防科技有限公司 Zero power consumption standby circuit and display terminal
CN103515800A (en) * 2013-08-30 2014-01-15 杨作峰 Standby zero-power-consumption energy-saving socket
CN103631163A (en) * 2013-11-22 2014-03-12 攀钢集团攀枝花钢铁研究院有限公司 Switch circuit for alternating current power supply
CN215954271U (en) * 2021-07-30 2022-03-04 深圳市世纪创新显示电子有限公司 A shutdown energy-saving display circuit and display

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001337656A (en) * 2000-05-29 2001-12-07 Matsushita Electric Ind Co Ltd Liquid crystal display device
CN1449113A (en) * 2003-04-30 2003-10-15 王稳忠 Microprocessor controlled AC switch circuit
CN203225836U (en) * 2013-04-28 2013-10-02 深圳市创维群欣安防科技有限公司 Zero power consumption standby circuit and display terminal
CN103515800A (en) * 2013-08-30 2014-01-15 杨作峰 Standby zero-power-consumption energy-saving socket
CN103631163A (en) * 2013-11-22 2014-03-12 攀钢集团攀枝花钢铁研究院有限公司 Switch circuit for alternating current power supply
CN215954271U (en) * 2021-07-30 2022-03-04 深圳市世纪创新显示电子有限公司 A shutdown energy-saving display circuit and display

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