CN217590352U - Power control circuit, power controller, control circuit and consumer - Google Patents
Power control circuit, power controller, control circuit and consumer Download PDFInfo
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- CN217590352U CN217590352U CN202221280525.1U CN202221280525U CN217590352U CN 217590352 U CN217590352 U CN 217590352U CN 202221280525 U CN202221280525 U CN 202221280525U CN 217590352 U CN217590352 U CN 217590352U
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Abstract
The utility model discloses a power control circuit, electrical source controller, control circuit and consumer to there is the problem of consumption in the solution consumer under standby state. The power supply control circuit comprises a starting module, a switch module, a control module, a power supply module and a voltage division module, wherein the starting module is used for enabling the power supply module to output internal power supply voltage after the switch module receives a starting signal; after receiving the conduction signal, enabling the power supply module to continuously output the internal power supply voltage; after receiving the turn-off signal, stopping the power supply module from outputting the internal power supply voltage; the control module is used for inputting a first voltage obtained by dividing the internal power supply voltage by the voltage dividing module and the switch module after the switch module inputs the starting signal, outputting a conducting signal, inputting a second voltage obtained by dividing the internal power supply voltage by the voltage dividing module and the switch module after the switch module inputs the shutdown signal, and outputting a shutdown signal. Therefore, the electric equipment realizes zero power consumption in a standby state, and saves electric energy.
Description
Technical Field
The utility model relates to an electronic circuit technical field, in particular to power control circuit, electrical source controller, control circuit and consumer.
Background
With the development of social economy and continuous progress of the technology level, the living standard of people is increasingly improved, and various household appliances are greatly deepened into the daily life of people. However, at present, many household appliances generate certain power consumption in a standby state, which causes certain energy waste, and cannot achieve the purpose of energy conservation and emission reduction.
Therefore, how to solve the problem of power consumption of the electric device in the standby state is a technical problem to be urgently solved by the technical staff in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a power control circuit, electrical source controller, control circuit and consumer for solve among the prior art problem that the consumer has the consumption under the standby state.
In a first aspect, the utility model provides a power control circuit, including start module, switch module, control module, power module and partial pressure module, wherein:
the starting module receives power supplied by an external power supply end, and switches on or off a path between the external power supply end and the power supply module;
the power supply module is connected with the starting module and provides internal power supply voltage;
the control module is connected with the voltage division module and receives the power supply of the internal power supply voltage through the voltage division module;
the switch module is connected with the voltage division module and outputs a first voltage when receiving a starting signal, and the control module outputs a conducting signal after receiving the first voltage to control the starting module to conduct a path between the external power supply end and the power supply module so that the power supply module continuously outputs the internal power supply voltage; the switch module outputs a second voltage when receiving a shutdown signal; and after receiving the second voltage, the control module outputs a turn-off signal to control the starting module to turn off a path between the external power supply end and the power supply module, so that the power supply module stops outputting the internal power supply voltage.
In the power control circuit, after the switch module receives the starting signal, a path between the external power supply end and the power module is conducted, so that the power module outputs internal power supply voltage, the internal power supply voltage is subjected to voltage division by the voltage division module and the switch module to obtain first voltage, the control module inputs the first voltage and outputs a conduction signal, and after the start module inputs the conduction signal, the power module continuously outputs the internal power supply voltage; after the switch module receives the shutdown signal, the internal power supply voltage is divided by the voltage dividing module and the switch module to obtain a second voltage, the control module inputs the second voltage and outputs a shutdown signal, and the start module inputs the shutdown signal and then enables the power supply module to stop outputting the internal power supply voltage. After the switch module receives the shutdown signal, the voltage division module and the switch module divide the internal power supply voltage to obtain a second voltage, the control module outputs a shutdown signal after receiving the second voltage, and the starting module stops outputting the internal power supply voltage after receiving the shutdown signal, so that zero power consumption of the electric equipment in a standby state can be realized, and electric energy is saved.
In one possible implementation manner, the starting module includes a first starting unit and a second starting unit;
the input end of the first starting unit is connected with the external power supply end, the output end of the first starting unit is connected with the input end of the power supply module, and the control end of the first starting unit is connected with the input end of the second starting unit and the first end of the switch module, and is used for conducting a path between the external power supply end and the power supply module after the switch module receives the starting signal;
the control end of the second starting unit is connected with the control module, the output end of the second starting unit is connected with the grounding end, and the second starting unit is used for conducting a path between the control end of the first starting unit and the grounding end after receiving the conducting signal, so that the first starting unit can continuously conduct a path between the external power supply end and the power supply module; and after receiving the turn-off signal, disconnecting a path between the control terminal of the first starting unit and the ground terminal, so that the first starting unit disconnects a path between the external power supply terminal and the power module.
Above-mentioned power control circuit, the start-up module includes first start-up unit and second start-up unit, first start-up unit is used for switching on and breaking off the route between outside feed end and the power module, so that the power module exports inside supply voltage or stops exporting inside supply voltage, the second start-up unit is used for making first start-up unit continuously switch on the route between outside feed end and the power module, or make first start-up unit break off the route between outside feed end and the power module, thereby reach the purpose of intercommunication and disconnection between outside feed end and the power module, make outside feed end can not supply power under consumer standby state, realize standby zero power consumption.
In a possible implementation manner, the second terminal of the switch module is connected to the input terminal of the control module, and the third terminal of the switch module is grounded;
the switch module is configured to, after receiving the power-on signal, turn on a path between the control terminal of the first starting unit and the ground terminal, so that the first starting module turns on a path between the external power supply terminal and the input terminal of the power supply module, and turn on a path between the second terminal of the switch module and the ground terminal, so that a voltage-dividing resistance value of the switch module is a first resistance value; after the shutdown signal is received, a path between the control end of the first starting unit and the grounding end and a path between the second end of the switch module and the grounding end are conducted, so that the voltage division resistance value of the switch module is a second resistance value.
According to the power supply control circuit, after the switch module receives the power-off signal after receiving the power-on signal, the voltage division resistance values of the switch module are different, so that different voltages can be input into the control module, the control module outputs the on signal and the off signal, and the internal power supply end is controlled to output the internal power supply voltage or stop outputting the internal power supply voltage.
In one possible implementation, the control module is further configured to:
and outputting the turn-off signal after outputting the preset duration of the turn-on signal.
According to the power supply control circuit, the control module can output the turn-off signal after outputting the turn-on signal for the preset time, so that the power supply module stops outputting the internal power supply voltage, and the purpose of zero standby power consumption of the electric equipment is achieved.
In one possible implementation, the switch module includes at least two switch branches, each of the switch branches includes a switch unit and a backflow prevention unit, where:
the first end of the switch unit is connected with the grounding end, and the second end of the switch unit is connected with the first end of the backflow preventing unit; the second end of the backflow prevention unit is connected with the first starting unit and the second starting unit, and the third end of the backflow prevention unit is connected with the control module;
the switch units are used for conducting a path between the backflow prevention unit and the grounding terminal after the switch units of a first number in at least two switch units receive the starting-up signals; after receiving the shutdown signal, the second number of switch units respectively turn on the corresponding paths between each anti-backflow unit and the ground terminal, where the first number is not equal to the second number;
the backflow prevention unit is used for stopping current from flowing to the control module from the first end of the backflow prevention unit.
In the power supply control circuit, the switch units with different numbers receive the starting-up signal or the shutdown signal, so that the voltage division resistance values of the switch modules are different, and the control module outputs a switching-on signal or a switching-off signal; the backflow prevention unit can prevent the voltage from flowing backwards to damage the device, and further protect the whole circuit.
In a possible implementation, the switch unit comprises a mechanical key;
the first end of the mechanical key is used as the first end of the switch unit, the second end of the mechanical key is used as the second end of the switch unit, and the control end of the mechanical key is used for receiving the starting signal or the shutdown signal.
In the power control circuit, the switch unit comprises the mechanical key, and the mechanical key is pressed down to be conducted and loosened to rebound. The starting-up is realized by pressing a first number of mechanical keys; and when a second number of mechanical keys are pressed, the shutdown is realized. The mechanical key switch is convenient to operate, so that simple operation of starting or shutting down can be realized.
In one possible implementation manner, the backflow prevention unit includes a first diode, a second diode, and a first resistor, wherein:
the cathode of the first diode is connected with the cathode of the second diode and serves as the first end of the backflow prevention unit, the anode of the first diode serves as the second end of the backflow prevention unit, the anode of the second diode is connected with one end of the first resistor, and the other end of the first resistor serves as the third end of the backflow prevention unit.
According to the power supply control circuit, the backflow prevention unit comprises the first diode, the second diode and the first resistor, and is used for stopping the voltage of the external power supply end from flowing back to the input end of the control module through the switch module after the mechanical key rebounds, so that the damage to a device caused by the voltage backflow is reduced.
In a possible implementation manner, the first starting unit includes a second resistor, a third resistor and a first switch tube, wherein:
the first end of the first switch tube is connected with the input end of the power supply module, the second end of the first switch tube is respectively connected with one end of the second resistor and one end of the third resistor, and the control end of the first switch tube is connected with the other end of the third resistor, the first end of the switch module and the input end of the second starting unit;
the other end of the second resistor is connected with the external power supply end.
In a possible implementation manner, the first switch tube is a P-type transistor.
In the power control circuit, the first starting unit comprises the second resistor, the third resistor and the first switch tube, after the switch module receives the starting signal, the switch module switches on a path between the control end and the grounding end of the first switch tube, the first switch tube is switched on, and the power module outputs the internal power supply voltage; after the control module outputs the turn-off signal, a passage between the control end of the first switch tube and the grounding end is disconnected, and the power supply module stops outputting the internal power supply voltage.
In a possible implementation manner, the second starting unit comprises a second switch tube;
the first end of the second switch tube is connected with the first end of the switch module and the control end of the first starting unit, the second end of the second switch tube is connected with the grounding end, and the control end of the second switch tube is connected with the output end of the control module.
In one possible implementation, the second switch tube is an N-type transistor.
According to the power supply control circuit, the second starting unit comprises the second switch tube, the control end of the second switch tube inputs a switch-on signal, the second switch tube is switched on, the first starting unit is enabled to continuously switch on a path between the external power supply end and the power supply module, the control end of the second switch tube inputs a switch-off signal, the second switch tube is disconnected, and the first starting unit is enabled to disconnect the path between the external power supply end and the power supply module. The second switch tube is used as an auxiliary switch to assist the first starting unit to complete the connection or disconnection of the circuit.
In one possible implementation, the voltage dividing module includes a fourth resistor;
one end of the fourth resistor is connected with the internal power supply end, and the other end of the fourth resistor is connected with the input end of the control module and the second end of the switch module.
In the power control circuit, the fourth resistor and the switch module divide the internal power supply voltage, and the control module outputs a turn-on signal or a turn-off signal under the action of the turn-on signal and the turn-off signal.
In one possible implementation, the power module includes a power chip;
the input end of the power supply chip is connected with the output end of the first starting unit, the grounding end of the power supply chip is grounded, and the output end of the power supply chip is connected with the internal power supply end.
In the power control circuit, the power module comprises the power chip and is used for outputting the internal power supply voltage after the first starting unit switches on the path between the external power supply end and the input end of the power chip and stopping outputting the internal power supply voltage after the first starting unit switches off the path between the external power supply end and the input end of the power chip.
The second aspect, the utility model provides a power supply controller, include power module, start-up module, partial pressure module and prevent flowing backward the unit, wherein:
the power supply module is connected with the starting module and provides internal power supply voltage;
the starting module receives power supplied by an external power supply end, and switches on or off a path between the external power supply end and the power supply module;
the voltage division module is connected with the control module and provides the internal power supply voltage for the control module;
the anti-backflow unit is connected with the control module and the mechanical key, outputs a first voltage when the mechanical key receives a starting signal, outputs a conduction signal after the control module receives the first voltage, and controls the starting module to conduct a path between the external power supply end and the power supply module so that the power supply module continuously outputs the internal power supply voltage; when the mechanical key receives a shutdown signal, a second voltage is output, the control module outputs a shutdown signal after receiving the second voltage, and controls the starting module to shut down a path between the external power supply end and the power supply module, so that the power supply module stops outputting the internal power supply voltage.
In a third aspect, the present invention further provides a control circuit, which includes a load and the power control circuit according to any one of the first aspect.
In a fourth aspect, the present invention further provides an electric device, including the control circuit of the third aspect.
For technical effects that may be achieved by the power controller disclosed in the second aspect, the control circuit disclosed in the third aspect, and the electric device disclosed in the fourth aspect, reference is made to the above description of the technical effects that may be achieved by the first aspect or various possible schemes in the first aspect, and details are not repeated here.
The utility model discloses beneficial effect as follows:
the utility model provides a power control circuit, electrical source controller, control circuit and consumer switches on or cuts off the route between outside feeder ear and the power module through start module, and then controls whether outside feeder ear is the load power supply. The power supply control circuit can realize that the external power supply end can not supply power for a load and can not output internal power supply voltage under the standby condition of the electric equipment, and the power consumption of the circuit is zero, so that the problem that the power consumption of the electric equipment in the standby state in the prior art is solved, the purposes of energy conservation and emission reduction are achieved, in addition, the power supply control circuit can realize one-key starting, namely, the starting function is realized by pressing any key, the operation is simple, and the realization is easy.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a power control circuit provided by the present invention;
fig. 2 is a schematic structural diagram of a switch module provided in the present invention;
fig. 3 is a schematic circuit diagram of a power control circuit according to the present invention;
fig. 4 is a schematic circuit diagram of another power control circuit provided by the present invention;
fig. 5 is a schematic structural diagram of a power supply controller provided by the present invention;
fig. 6 is a schematic structural diagram of a control circuit according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and the like in the description of the invention does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
In view of the power consumption problem that prior art can't solve the product and exist under standby state, the embodiment of the utility model provides a power control circuit, power controller and consumer for realize that the consumer is zero-power consumption under standby state, reach energy saving and emission reduction's purpose.
The following describes in detail a solution provided by an embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1, for the utility model provides a pair of power control circuit, including start module 10, switch module 11, power module 12, control module 13 and partial pressure module 14, wherein:
the starting module 10 receives power supplied by the external power supply terminal VCC, and switches on or off a path between the external power supply terminal VCC and the power module 12;
the power module 12 is connected with the starting module 10 and provides an internal power supply voltage Vcc1;
the control module 13 is connected with the voltage dividing module 14 and receives power supply of the internal power supply voltage Vcc1 through the voltage dividing module 14;
the switch module 11 is connected with the voltage dividing module 14, and outputs a first voltage when receiving a power-on signal, and the control module 13 outputs a conducting signal after receiving the first voltage, so as to control the starting module 10 to conduct a path between an external power supply terminal VCC and the power supply module 12, so that the power supply module 12 continuously outputs an internal power supply voltage VCC1; the switch module 11 outputs a second voltage when receiving a shutdown signal; after receiving the second voltage, the control module 13 outputs a shutdown signal to control the start module 10 to shut down a path between the external power supply terminal VCC and the power supply module 12, so that the power supply module 12 stops outputting the internal power supply voltage VCC1.
The embodiment of the utility model provides a, because behind switch module 11 received the shutdown signal, voltage division module 14 and switch module 11 carry out the partial pressure to inside supply voltage, obtain the second voltage, behind control module 13 received the second voltage, output turn-off signal, after turn-off signal was received to start module 10, make power module 12 stop outputting inside supply voltage to can realize the zero-power consumption under the standby state, save the electric energy.
It should be noted that, in the embodiment of the present invention, the external power supply VCC may be a storage battery, may be a dc power supply, may also be solar energy, and a device capable of outputting dc power is applicable to the embodiment of the present invention;
the embodiment of the utility model provides an in consumer can be domestic appliance, can be the computer, still can be for main equipment, still can be for other consumers, the embodiment of the utility model provides a do not do any restriction to this.
Specifically, as shown in fig. 1, the starting module 10 includes a first starting unit 101 and a second starting unit 102;
the first starting unit 101 is respectively connected to the external power supply terminal VCC, the power module 12, the second starting unit 102 and the switch module 11, and is configured to conduct a path between the external power supply terminal VCC and the power module 12 after the switch module 11 receives the power-on signal;
the second starting unit 102 is further connected to the ground terminal and the control module 13, respectively, and is configured to, after receiving the conducting signal output by the control module 13, conduct a path between the second starting unit 102 and the ground terminal, so that the first starting unit 101 continuously conducts the path between the external power supply terminal VCC and the power supply module 12; and after receiving the shutdown signal output by the control module 13, disconnecting the path between the second startup unit 102 and the ground terminal, so that the first startup unit 101 disconnects the path between the external power supply terminal VCC and the power supply module 12.
As can be seen from fig. 1, an input terminal of the first starting unit 101 is connected to the external power supply terminal VCC, a control terminal of the first starting unit 101 is connected to an input terminal of the second starting unit 102 and a first terminal of the switch module 11, an output terminal of the first starting unit 101 is connected to an input terminal of the power module 12, and after the first starting unit 101 switches on a path between the external power supply terminal VCC and the power module 12, the power module 12 can output the internal power supply voltage VCC1 through the internal power supply terminal VCC1.
As can be seen from fig. 1, the control terminal of the second starting unit 102 is connected to the output terminal of the control module 13, the output terminal of the second starting unit 102 is grounded, and after the output terminal of the control module 13 outputs the conducting signal, the second starting unit 102 conducts a path between the input terminal of the second starting unit 102 and the output terminal of the second starting unit 102, that is, a path between the input terminal of the second starting unit 102 and the ground terminal is conducted, so that the first starting unit 101 continuously conducts a path between the external power supply terminal VCC and the input terminal of the power module 12, and the power module 12 continuously outputs the internal power supply voltage VCC1; when the output end of the control module 13 outputs the shutdown signal, the second starting unit 102 disconnects the path between the input end of the second starting unit 102 and the output end of the second starting unit 102, that is, the path between the input end of the second starting unit 102 and the ground end is disconnected, so that the first starting unit 101 disconnects the path between the external power supply terminal VCC and the input end of the power module 12, and the power module 12 stops outputting the internal power supply voltage VCC1.
In a specific implementation, after the switch module 11 receives the power-on signal, the path between the first end of the switch module 11 and the ground end is turned on, that is, the path between the second input end of the first starting unit 101 and the ground end is turned on, and then the first starting unit 101 turns on the path between the external power supply terminal VCC and the input end of the power module 12, so that the power module 12 outputs the internal power supply voltage VCC1.
After the internal power supply terminal Vcc1 outputs the internal power supply voltage Vcc1, the voltage dividing module 14 and the switch module 11 divide the internal power supply voltage Vcc1 to obtain a first voltage, the first voltage is input to the input terminal of the control module 13, and the control module 13 outputs a conduction signal.
The above is an explanation of the startup process, when the switch module 11 receives the shutdown signal, because the internal power supply terminal VCC1 outputs the internal power supply voltage VCC1 at this time, the voltage dividing module 14 and the switch module 11 that receives the shutdown signal divide the voltage of the internal power supply voltage VCC1 to obtain the second voltage, and after the second voltage is input to the input end of the control module 13, the control module 13 outputs the shutdown signal.
In an embodiment, the switch module 11 may include at least two switch branches 111, as shown in fig. 2, the switch module 11 includes n switch branches 111, each switch branch 111 includes a switch unit 1111 and a backflow prevention unit 1112, wherein, for each switch branch 111:
a first end of the switch unit 1111 is connected to the ground terminal, and a second end of the switch unit 1111 is connected to a first end of the backflow prevention unit 1112; a second end a of the backflow prevention unit 1112 is connected with the first starting unit 101, the second starting unit 102 and the voltage dividing module 14, and a third end B of the backflow prevention unit 1112 is connected with the control module 13 and the voltage dividing module 14;
the switch units 1111 are configured to turn on paths between the anti-backflow unit 1112 and a ground terminal after a first number of the switch units 1111 of the at least two switch units 1111 receive the power-on signal; after receiving the shutdown signal, the second number of switch units 1111 respectively turn on the corresponding paths between each anti-backflow unit 1112 and the ground end, where the first number is not equal to the second number;
the anti-backflow unit 1112 is configured to stop a current from flowing from a first end of the anti-backflow unit 1112 to the control module 13.
Specifically, the switch unit 1111 includes a mechanical key, K1, K2 \8230 \ 8230, kn, where a first end of the mechanical key is used as a first end of the switch unit 1111, a second end of the mechanical key is used as a second end of the switch unit 1111, and a control end of the mechanical key is used to receive a power-on signal or a power-off signal.
The anti-backflow unit 1112 comprises a first diode D11, a first diode D21, a second diode D12, a second diode D22, a third diode D8230, a fourth diode D2, a first resistor R11, a third diode R12, a fourth diode D8230, a third diode D1 n, a fourth diode D11, a second diode D12 and a first resistor R11, wherein the connection relation of the first diode, the second diode and the first resistor in the anti-backflow unit 1112 is described by taking the first diode D11, the second diode D12 and the first resistor R11 as examples: the cathode of the first diode D11 is connected to the cathode of the second diode D12, and serves as the first end of the anti-backflow unit 1112, the anode of the first diode D11 serves as the second end of the anti-backflow unit 1112, the anode of the second diode D12 is connected to one end of the first resistor R11, and the other end of the first resistor R11 serves as the third end of the anti-backflow unit 1112.
The utility model provides a mechanical key switch switches on after pressing, loosens the back disconnection, refers to fig. 3, to every switch branch road, and when mechanical key switch breaks off, the second diode is used for the cut-off current by first start-up unit 101 via first resistance flow direction control module 13, avoids the damage of device to ensure the normal work of circuit.
It should be noted that, in the embodiment of the present invention, the first diode and the second diode may be replaced by a composite diode.
In a specific embodiment, as shown in fig. 3, the first starting unit 101 includes a second resistor R2, a third resistor R3 and a first switch Q1, wherein:
a first end of the first switching tube Q1 is connected with an input end of the power module 12, a second end of the first switching tube Q1 is respectively connected with one end of the second resistor R2 and one end of the third resistor R3, and a control end of the first switching tube Q1 is connected with the other end of the third resistor R3, the switching module 11 and the second starting unit 102;
the other end of the second resistor R2 is connected to an external power supply terminal VCC.
Specifically, the first switching tube Q1 may be a P-type transistor.
It should be noted that, in the embodiment of the present invention, the first switch tube Q1 may also be a triode, an IGBT, or the like.
The second starting unit 102 comprises a second switching tube Q2;
a first end of the second switch tube Q2 is connected to the switch module 11 and the first starting unit 101, a second end of the second switch tube Q2 is connected to the ground, and a control end of the second switch tube Q2 is connected to the control module 13.
Specifically, the second switching tube Q2 may be an N-type transistor.
It should be noted that, in the embodiment of the present invention, the second switch tube Q2 may also be a triode, an IGBT, or the like.
As shown in fig. 3, the voltage divider module 14 may include a fourth resistor R4, wherein one end of the fourth resistor R4 is connected to the internal power supply terminal VCC1, and the other end of the fourth resistor R4 is connected to the control module 13.
In a specific implementation, the power module 12 may be a power chip, and the power chip converts an external power supply voltage VCC output by an external power supply terminal VCC to obtain an internal power supply voltage VCC1; the control module 13 may be a Micro Controller Unit (MCU), an Analog-to-Digital Converter (ADC) pin of the MCU is used as an Input terminal of the control module 13, and a General Purpose Input/Output (GPIO) pin of the MCU is used as an Output terminal of the control module 13.
The embodiment of the present invention will be described below by taking an example in which the switch module 11 includes two switch branches, as shown in fig. 4.
When the mechanical key K1 is pressed, that is, after the switch module 11 receives a power-on signal, a circuit loop is Vcc → R2 → R3 → D11 → K1 → GND (ground), at this time, a conduction condition of the first switch tube Q1 in the first starting unit 101 is satisfied, the first switch tube Q1 is turned on, so that a path between the external power supply terminal Vcc and the power module 12 is turned on, that is, the external power supply voltage Vcc is input to the power module 12, the power module 12 outputs the internal power supply voltage Vcc1 after receiving the external power supply voltage Vcc, the internal power supply voltage Vcc1 is divided by the fourth resistor R4 and the first resistor R11 to generate a first voltage, the control module 13 inputs the first voltage, outputs a conduction signal to the second starting unit 102, so that the second switch tube Q2 in the second starting unit 102 is turned on, when the mechanical key K1 is flipped, the second switch tube Q2 is turned on, so that the first switch tube Q1 is continuously turned on, so that the external power supply terminal and the power module 12 are continuously turned on for supplying power; when the circuit normally works for a period of time, if shutdown is required, the mechanical keys K1 and K2 may be pressed simultaneously, that is, the switch module 11 receives a shutdown signal, and at this time, the internal power supply terminal VCC1 outputs the internal power supply voltage VCC1, so that after the mechanical keys K1 and K2 are pressed simultaneously, the internal power supply voltage VCC1 is divided by the fourth resistor R4 and the first resistors R11 and R12 to generate a second voltage, where R11 and R12 are connected in parallel, the control module 13 sends a shutdown signal to the second starting unit 102 after receiving the second voltage, so that the second switching tube Q2 in the second starting unit 102 is disconnected, and since the mechanical keys K1 and K2 are bounced up, after the second switching tube Q2 is disconnected, the control terminal of the first switching tube Q1 is disconnected from the ground terminal, the first switching tube Q1 is disconnected, that is the path between the external power supply terminal VCC and the power supply module 12 is disconnected, and the power supply module 12 stops outputting the internal power supply voltage VCC, that is to supply power to the electrical equipment.
In another embodiment, the mechanical key K2 may be pressed alone at power-on, when the mechanical key K2 is pressed, that is, after the switch module 11 receives a power-on signal, a circuit loop is Vcc → R2 → R3 → D12 → K2 → GND (ground), at this time, a conduction condition of the first switch tube Q1 in the first starting unit 101 is satisfied, the first switch tube Q1 is turned on, so as to conduct a path between the external power supply terminal Vcc and the power module 12, that is, the external power supply voltage Vcc is input to the power module 12, after the power module 12 receives the external power supply voltage Vcc, the internal power supply voltage Vcc1 is output, the internal power supply voltage Vcc1 is divided by the fourth resistor R4 and the first resistor R11, so as to generate a first voltage, the control module 13 inputs the first voltage, outputs a conduction signal to the second starting unit 102, so as to turn on the second switch tube Q2 in the second starting unit 102, when the mechanical key K1 is flipped, because the second switch tube Q2 is turned on, so as to continuously conduct the external power supply terminal Vcc and the internal power supply device 12 is continuously powered on; after the circuit normally works for a period of time, if shutdown is required, the mechanical keys K1 and K2 may be pressed simultaneously, that is, the switch module 11 receives a shutdown signal, and at this time, the internal power supply terminal VCC1 outputs the internal power supply voltage VCC1, so that after the mechanical keys K1 and K2 are pressed simultaneously, the internal power supply voltage VCC1 is divided by the fourth resistor R4 and the first resistors R11 and R12 to generate a second voltage, where R11 and R12 are connected in parallel, the control module 13 sends a shutdown signal to the second starting unit 102 after receiving the second voltage, so that the second switching tube Q2 in the second starting unit 102 is disconnected, and since the mechanical keys K1 and K2 are bounced, after the second switching tube Q2 is disconnected, the control terminal and the ground terminal of the first switching tube Q1 are disconnected, the first switching tube Q1 is disconnected, that is the path between the external power supply terminal VCC and the power supply module 12 is disconnected, and the power supply module 12 stops outputting the internal power supply voltage VCC1, that is stopped to supply power to the electric devices.
The embodiment of the utility model provides a power control circuit, except that the shutdown signal is received to above-mentioned switch module 11 that gives off, can also automatic shutdown, mechanical button K1 and K2 do not all operate promptly, after long time is predetermine in circuit work, control module 13 can send the turn-off signal to second switch tube Q2, thereby control the disconnection of first switch tube Q1, and then realize breaking off the route between outside feed end VCC and the power module 12, then power module 12 stops exporting inside supply voltage Vcc1, stop promptly for the power supply of consumer.
The above is an explanation of the two switch branches, if there are multiple switch branches, as long as the number of the mechanical switches pressed during startup and shutdown is different, the control module 13 stores in advance the voltage value of the input terminal corresponding to startup and the voltage value of the input terminal corresponding to shutdown, outputs a turn-on signal when the read voltage value corresponds to startup, and outputs a turn-off signal when the read voltage value corresponds to shutdown.
It is required to explain that, the embodiment of the present invention provides a power control circuit which can be applied to a battery-powered digital screen, a liquid crystal display, and other devices, and the embodiment of the present invention does not limit the present invention.
Based on the same concept, the embodiment of the present invention further provides a power supply controller, as shown in fig. 5, the power supply controller 51 includes a power module 12, a starting module 10, a voltage dividing module 14, and a backflow preventing unit 1112, wherein:
the power module 12 is connected with the starting module 10 and provides an internal power supply voltage Vcc1;
the starting module 10 is connected to the backflow prevention unit 1112, receives power supplied by the external power supply terminal VCC, and switches on or off a path between the external power supply terminal VCC and the power module 12;
the voltage dividing module 14 is connected with the control module 13 and provides an internal power supply voltage Vcc1 for the control module 13;
the backflow prevention unit 1112 is connected to the control module 13 and the mechanical key 52 (K1, K2 \8230; 8230; kn), and outputs a first voltage when the mechanical key 52 (K1, K2 \8230; kn) receives a power-on signal, and the control module 13 outputs a turn-on signal after receiving the first voltage to control the start module 10 to turn on a path between the external power supply terminal VCC and the power supply module 12, so that the power supply module 12 continuously outputs the internal power supply voltage VCC1; when the mechanical key 52 (K1, K2 \8230; kn) receives the shutdown signal, the second voltage is output, and after receiving the second voltage, the control module 13 outputs the shutdown signal to control the start module 10 to shut down the path between the external power supply terminal VCC and the power module 12, so that the power module 12 stops outputting the internal power supply voltage VCC1.
The principle of the power controller for solving the problem is similar to that of the power control circuit, so the implementation of the power controller can refer to the implementation of the power control circuit, and repeated parts are not described herein again.
In specific implementation, in the embodiment of the present invention, the power controller may be applied to: any product or component with an external power supply, such as a refrigerator, an air conditioner, a mobile phone, etc. Other essential components of the power supply controller are understood by those skilled in the art, and are not described herein nor should they be construed as limitations of the present invention.
Based on the same conception, the embodiment of the present invention further provides a control circuit, as shown in fig. 6, the control circuit includes any of the power control circuits and loads of the above embodiments, when the control circuit is implemented, the VCC is an external power supply terminal, when the first starting unit 101 does not work, the external power supply voltage VCC cannot supply power to the load 61 through the first starting unit 101, and no voltage exists at both ends of the load 61. When the first starting unit 101 works, the external power supply voltage Vcc supplies power to the load 61 through the first starting unit 101, and there is a voltage across the load 61, wherein the load may be a device such as an LED, an LCD liquid crystal, or a nixie tube.
The principle of the control circuit to solve the problem is similar to that of the power control circuit, so the implementation of the control circuit can be referred to the implementation of the power control circuit, and repeated details are not repeated herein.
Based on the same conception, the utility model also provides an electric equipment, this electric equipment includes the control circuit that above-mentioned embodiment provided. The principle of the electric equipment for solving the problems is similar to that of the control circuit, so the implementation of the electric equipment can be referred to the implementation of the control circuit, and repeated details are not repeated.
Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (16)
1. The utility model provides a power control circuit which characterized in that, includes start module, switch module, control module, power module and partial pressure module, wherein:
the starting module receives power supplied by an external power supply end, and switches on or off a path between the external power supply end and the power supply module;
the power supply module is connected with the starting module and provides internal power supply voltage;
the control module is connected with the voltage dividing module and receives power supply of the internal power supply voltage through the voltage dividing module;
the switch module is connected with the voltage dividing module and outputs a first voltage when receiving a starting signal, and the control module outputs a conducting signal after receiving the first voltage and controls the starting module to conduct a path between the external power supply end and the power supply module so that the power supply module continuously outputs the internal power supply voltage; the switch module outputs a second voltage when receiving a shutdown signal; and after receiving the second voltage, the control module outputs a turn-off signal to control the starting module to turn off a path between the external power supply end and the power supply module, so that the power supply module stops outputting the internal power supply voltage.
2. The circuit of claim 1, wherein the startup module comprises a first startup unit and a second startup unit;
the input end of the first starting unit is connected with the external power supply end, the output end of the first starting unit is connected with the input end of the power module, and the control end of the first starting unit is connected with the input end of the second starting unit and the first end of the switch module, so that the switch module is used for conducting a path between the external power supply end and the power module after receiving the starting signal;
the control end of the second starting unit is connected with the control module, the output end of the second starting unit is connected with the grounding end, and the second starting unit is used for conducting a path between the control end of the first starting unit and the grounding end after receiving the conducting signal, so that the first starting unit can continuously conduct the path between the external power supply end and the power supply module; and after receiving the turn-off signal, disconnecting a path between the control terminal of the first starting unit and the ground terminal, so that the first starting unit disconnects a path between the external power supply terminal and the power module.
3. The circuit of claim 2, wherein a second terminal of the switch module is connected to an input terminal of the control module, and a third terminal of the switch module is connected to ground;
the switch module is configured to, after receiving the power-on signal, turn on a path between the control terminal of the first starting unit and the ground terminal, so that the first starting unit turns on a path between the external power supply terminal and the input terminal of the power supply module, and turn on a path between the second terminal of the switch module and the ground terminal, so that a voltage division resistance value of the switch module is a first resistance value; after the shutdown signal is received, a path between the control end of the first starting unit and the grounding end and a path between the second end of the switch module and the grounding end are conducted, so that the voltage division resistance value of the switch module is a second resistance value.
4. The circuit of claim 1, wherein the control module is further to:
and outputting the turn-off signal after outputting the preset duration of the turn-on signal.
5. The circuit of claim 3, wherein the switching module comprises at least two switching legs, each switching leg comprising a switching unit and a back-flow prevention unit, wherein:
the first end of the switch unit is connected with the grounding end, and the second end of the switch unit is connected with the first end of the backflow prevention unit; the second end of the backflow prevention unit is connected with the first starting unit and the second starting unit, and the third end of the backflow prevention unit is connected with the control module;
the switch unit is used for conducting a path between the backflow prevention unit and the grounding terminal after any one of the at least two switch units receives the starting-up signal; after at least two of the at least two switch units simultaneously receive the shutdown signal, respectively conducting a path between each backflow prevention unit corresponding to the switch unit and the grounding terminal;
the backflow prevention unit is used for stopping current from flowing to the control module from the first end of the backflow prevention unit.
6. The circuit of claim 5, wherein the switch unit comprises a mechanical button;
the first end of the mechanical key serves as the first end of the switch unit, the second end of the mechanical key serves as the second end of the switch unit, and the control end of the mechanical key is used for receiving the power-on signal or the power-off signal.
7. The circuit of claim 5, wherein the back-flow prevention unit comprises a first diode, a second diode, and a first resistor, wherein:
the negative electrode of the first diode is connected with the negative electrode of the second diode and serves as the first end of the backflow prevention unit, the positive electrode of the first diode serves as the second end of the backflow prevention unit, the positive electrode of the second diode is connected with one end of the first resistor, and the other end of the first resistor serves as the third end of the backflow prevention unit.
8. The circuit of claim 2, wherein the first enabling unit comprises a second resistor, a third resistor, and a first switching tube, wherein:
the first end of the first switch tube is connected with the input end of the power supply module, the second end of the first switch tube is respectively connected with one end of the second resistor and one end of the third resistor, and the control end of the first switch tube is connected with the other end of the third resistor, the first end of the switch module and the input end of the second starting unit;
the other end of the second resistor is connected with the external power supply end.
9. The circuit of claim 8, wherein the first switch is a P-type transistor.
10. The circuit of claim 2, wherein the second starting unit comprises a second switching tube;
the first end of the second switch tube is connected with the first end of the switch module and the control end of the first starting unit, the second end of the second switch tube is connected with the grounding end, and the control end of the second switch tube is connected with the output end of the control module.
11. The circuit of claim 10, wherein the second switch is an N-type transistor.
12. The circuit of claim 1, wherein the voltage divider module comprises a fourth resistor;
one end of the fourth resistor is connected with the internal power supply end, and the other end of the fourth resistor is connected with the input end of the control module and the second end of the switch module.
13. The circuit of any of claims 2-3 and 5-11, wherein the power module comprises a power chip;
the input end of the power supply chip is connected with the output end of the first starting unit, and the output end of the power supply chip is connected with the internal power supply end.
14. The utility model provides a power controller which characterized in that, includes power module, start-up module, partial pressure module and prevents flowing backward the unit, wherein:
the power supply module is connected with the starting module and provides internal power supply voltage;
the starting module receives power supplied by an external power supply end, and switches on or off a path between the external power supply end and the power supply module;
the voltage division module is connected with the control module and provides the internal power supply voltage for the control module;
the anti-backflow unit is connected with the control module and the mechanical key, outputs a first voltage when the mechanical key receives a starting signal, outputs a conduction signal after the control module receives the first voltage, and controls the starting module to conduct a path between the external power supply end and the power supply module so that the power supply module continuously outputs the internal power supply voltage; when the mechanical key receives a shutdown signal, a second voltage is output, the control module outputs a shutdown signal after receiving the second voltage, and controls the starting module to shut down a path between the external power supply end and the power supply module, so that the power supply module stops outputting the internal power supply voltage.
15. A control circuit comprising a load and a power supply control circuit as claimed in any one of claims 1 to 13.
16. An electric consumer, characterized in that it comprises a control circuit according to claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221280525.1U CN217590352U (en) | 2022-05-25 | 2022-05-25 | Power control circuit, power controller, control circuit and consumer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221280525.1U CN217590352U (en) | 2022-05-25 | 2022-05-25 | Power control circuit, power controller, control circuit and consumer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116685027A (en) * | 2023-07-31 | 2023-09-01 | 深圳市千岩科技有限公司 | On-off control circuit, lighting system and on-off control method |
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2022
- 2022-05-25 CN CN202221280525.1U patent/CN217590352U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116685027A (en) * | 2023-07-31 | 2023-09-01 | 深圳市千岩科技有限公司 | On-off control circuit, lighting system and on-off control method |
| CN116685027B (en) * | 2023-07-31 | 2024-04-23 | 深圳市千岩科技有限公司 | On-off control circuit, lighting system and on-off control method |
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