CN103580515A - Circuit for reducing power source static power consumption - Google Patents
Circuit for reducing power source static power consumption Download PDFInfo
- Publication number
- CN103580515A CN103580515A CN201310574547.8A CN201310574547A CN103580515A CN 103580515 A CN103580515 A CN 103580515A CN 201310574547 A CN201310574547 A CN 201310574547A CN 103580515 A CN103580515 A CN 103580515A
- Authority
- CN
- China
- Prior art keywords
- power supply
- triode
- resistance
- circuit
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention provides a circuit for reducing the power source static power consumption. The power source circuit is divided into two portions, wherein one portion is a positive half-wave loop, and the other portion is a negative half-wave loop. The positive half-wave loop passes through a 12V voltage-stabilizing tube ZD1, a 78L05(U1) is arranged behind the 12V voltage-stabilizing tube ZD1, and therefore two power sources are obtained, namely the 12V power source and the 5V power source. The 12V power source is generally not used, the 5V power source is used for supplying power to an MCU, and a plurality of LEDs, buzzer drives and the like are added. The negative half-wave loop also passes through a 12V voltage-stabilizing tube ZD2 and is characterized in that an audion Q1 is connected beside the 12V voltage-stabilizing tube ZD2 in parallel, and an IO interface of P_HT is controlled by the MCU. According to the circuit for reducing the power source static power consumption, a relay is controlled and driven by controlling the P_HT. When a controller is just powered on, the negative half-wave loop is switched off, the relay is in the disconnected state, at the moment, negative half waves are in the short circuit directly by the audion Q3, and no power consumption of the ZD2 is generated, so that the static power consumption is also reduced.
Description
Technical field
The present invention relates to a kind of circuit, relate in particular to a kind of circuit that reduces power supply quiescent dissipation.
Background technology
Along with battery powered portable type electronic product is constantly to low-voltage, low-power consumption, large sense of current development, harsher to the low-power consumption of switching power source chip and high efficiency requirement, the power consumption of chip and conversion efficiency determine service efficiency and the life-span of battery to a great extent.Therefore be necessary to reduce the power consumption of each functional module in Switching Power Supply.
Summary of the invention
In order to solve problem in prior art, the invention provides a kind of circuit that reduces power supply quiescent dissipation, the live wire of AC power is by insurance resistance first capacitor C 1 of connecting, the 4th resistance R 4, the positive pole of the second voltage-stabiliser tube ZD2, the negative pole of the 3rd diode D3, the 3rd positive pole of diode D3 and the zero line of AC power are connected, the emitter of the Q1 of the first triode is connected with the negative pole of the second voltage-stabiliser tube ZD2, the collector electrode of the Q1 of the first triode is connected with the positive pole of the second voltage-stabiliser tube ZD2, the base stage of the Q1 of the first triode is connected with the collector electrode of the second triode Q2 by the 5th resistance R 5, the grounded emitter of the second triode Q2, the base stage of the second triode Q2 is connected with low power consumption control pin P_HT, the emitter of the first triode Q1 is connected with power supply VCC by the 4th diode D4,
The collector electrode of the power supply chip U1 being formed by triode encapsulation is connected with the first DC power supply of+5V, the emitter of power supply chip U1 is connected with the second DC power supply of+12V, simultaneously, the positive pole of the second voltage-stabiliser tube ZD2 is also connected with the second DC power supply of+12V, the base earth of power supply chip U1, the plus earth of the first voltage-stabiliser tube ZD1, negative pole is connected with the second DC power supply;
Relay the first pin is connected with the live wire of AC power, and the second pin is connected with the zero line of AC power, and the 3rd pin is connected with power supply VCC, and the 4th pin is connected with the second DC power supply of+12V; Between the 3rd pin of relay and the 4th pin, connect the second diode D2.
As a further improvement on the present invention, piezo-resistance VVR1 one end is connected with the zero line of AC power, and the other end is connected with insurance resistance; Connect one end of the first resistance R 1 and the 3rd resistance R 3, the second resistance R 2, the two ends of the first capacitor C 1 connects between the first resistance R 1 and the 3rd resistance R 3, other end Z0 ground connection.
As a further improvement on the present invention, one end of the 6th resistance R 6 is connected with the first DC power supply of+5V, the other end is connected with the base stage of the second triode Q2, and one end of the 7th resistance R 7 is connected with the base stage of the second triode Q2, and the other end is connected with low power consumption control pin P_HT.
As a further improvement on the present invention, the first negative pole of diode D1 and the zero line of AC power are connected, other end ground connection.
As a further improvement on the present invention, one end ground connection of the second capacitor C 2, the other end is connected with the collector electrode of power supply chip U1.
As a further improvement on the present invention, one end ground connection of the first electrochemical capacitor, the other end is connected with the emitter of power supply chip U1.
As a further improvement on the present invention, one end of the second electrochemical capacitor is connected with power supply VCC, and the other end is connected with the second DC power supply of+12V.
As a further improvement on the present invention, one end ground connection of the 3rd electrochemical capacitor, the other end is connected with the collector electrode of power supply chip U1.
As a further improvement on the present invention, the first triode Q1 is positive-negative-positive triode, and the second triode Q2 is NPN type triode.
As a further improvement on the present invention, between the first pin of relay and the live wire of AC power, be connected peg graft by male and female plug-in unit H1, H2 are connected.
The present invention controls driving relay by controlling P_HT, when controller just powers on, turns off the loop of negative half-wave, the state that namely relay disconnects, at this moment negative half-wave is directly by the short circuit of triode Q1 institute, and ZD2 does not just have the generation of power consumption so, thereby reduces yet static exercise consumption.
Accompanying drawing explanation
Fig. 1 is an a kind of part that reduces the circuit of power supply quiescent dissipation of the present invention;
Fig. 2 is a kind of relay part that reduces the circuit of power supply quiescent dissipation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As illustrated in fig. 1 and 2,
The live wire of AC power is by insurance resistance first capacitor C 1 of connecting, the 4th resistance R 4, the positive pole of the second voltage-stabiliser tube ZD2, the negative pole of the 3rd diode D3, the 3rd positive pole of diode D3 and the zero line of AC power are connected, the emitter of the Q1 of the first triode is connected with the negative pole of the second voltage-stabiliser tube ZD2, the collector electrode of the Q1 of the first triode is connected with the positive pole of the second voltage-stabiliser tube ZD2, the base stage of the Q1 of the first triode is connected with the collector electrode of the second triode Q2 by the 5th resistance R 5, the grounded emitter of the second triode Q2, the base stage of the second triode Q2 is connected with low power consumption control pin P_HT, the emitter of the first triode Q1 is connected with power supply VCC by the 4th diode D4,
The collector electrode of the power supply chip U1 being formed by triode encapsulation is connected with the first DC power supply of+5V, the emitter of power supply chip U1 is connected with the second DC power supply of+12V, simultaneously, the positive pole of the second voltage-stabiliser tube ZD2 is also connected with the second DC power supply of+12V, the base earth of power supply chip U1, the plus earth of the first voltage-stabiliser tube ZD1, negative pole is connected with the second DC power supply;
Relay the first pin is connected with the live wire of AC power, and the second pin is connected with the zero line of AC power, and the 3rd pin is connected with power supply VCC, and the 4th pin is connected with the second DC power supply of+12V; Between the 3rd pin of relay and the 4th pin, connect the second diode D2.Between the live wire of the first pin and AC power, be connected peg graft by male and female plug-in unit H1, H2 are connected.
Piezo-resistance VVR1 one end is connected with the zero line of AC power, and the other end is connected with insurance resistance; Connect one end of the first resistance R 1 and the 3rd resistance R 3, the second resistance R 2, the two ends of the first capacitor C 1 connects between the first resistance R 1 and the 3rd resistance R 3, other end Z0 ground connection;
One end of the 6th resistance R 6 is connected with the first DC power supply of+5V, and the other end is connected with the base stage of the second triode Q2, and one end of the 7th resistance R 7 is connected with the base stage of the second triode Q2, and the other end is connected with low power consumption control pin P_HT;
The first negative pole of diode D1 and the zero line of AC power are connected, other end ground connection;
One end ground connection of the second capacitor C 2, the other end is connected with the collector electrode of power supply chip U1;
One end ground connection of the first electrochemical capacitor, the other end is connected with the emitter of power supply chip U1;
One end of the second electrochemical capacitor is connected with power supply VCC, and the other end is connected with the second DC power supply of+12V;
One end ground connection of the 3rd electrochemical capacitor, the other end is connected with the collector electrode of power supply chip U1;
The first triode Q1 is positive-negative-positive triode, and the second triode Q2 is NPN type triode.
This power circuit can be divided into two parts, and one is positive half wave loop, and another part is negative half-wave loop.
1, ，Ci loop in positive half wave loop is by a 12V voltage-stabiliser tube ZD1, also has a 78L05 (U1) after 12V voltage-stabiliser tube, two power supply: 12V and 5V have just been obtained thus, the 12V here conventionally need not, and 5V brings to MCU power supply, more additional LED, buzzer driving etc.
2, ，Ci loop, negative half-wave loop is also by the voltage-stabiliser tube ZD2 of a 12V, but key point be in the parallel connection of the side of this 12V voltage-stabiliser tube a triode Q1, by MCU, control this IO mouth of P_HT:
During P_HT=0, triode Q2 conducting, thus make Q1 conducting, when Q1 conducting, voltage-stabiliser tube ZD2 is by the CE utmost point short circuit of triode, and at this moment final ZD2 does not just play the effect of voltage stabilizing, and the voltage of VCC is for approaching 12V;
During P_HT=1, not conducting of triode Q2, thus Q1 does not have conducting yet, and at this moment voltage-stabiliser tube ZD2 has played the effect of voltage stabilizing, and at this time the relative 12V of VCC has the voltage of 12V, and this voltage just can be used as the driving of relay.
By controlling P_HT, control driving relay, when controller just powers on, turn off the loop of negative half-wave, the state that namely relay disconnects, at this moment negative half-wave is directly by the short circuit of triode Q1 institute, and ZD2 does not just have the generation of power consumption so, thereby reduces yet static exercise consumption.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a circuit that reduces power supply quiescent dissipation, it is characterized in that: the live wire of AC power is by insurance resistance first capacitor C 1 of connecting, the 4th resistance R 4, the positive pole of the second voltage-stabiliser tube ZD2, the negative pole of the 3rd diode D3, the 3rd positive pole of diode D3 and the zero line of AC power are connected, the emitter of the Q1 of the first triode is connected with the negative pole of the second voltage-stabiliser tube ZD2, the collector electrode of the Q1 of the first triode is connected with the positive pole of the second voltage-stabiliser tube ZD2, the base stage of the Q1 of the first triode is connected with the collector electrode of the second triode Q2 by the 5th resistance R 5, the grounded emitter of the second triode Q2, the base stage of the second triode Q2 is connected with low power consumption control pin P_HT, the emitter of the first triode Q1 is connected with power supply VCC by the 4th diode D4,
The collector electrode of the power supply chip U1 being formed by triode encapsulation is connected with the first DC power supply of+5V, the emitter of power supply chip U1 is connected with the second DC power supply of+12V, simultaneously, the positive pole of the second voltage-stabiliser tube ZD2 is also connected with the second DC power supply of+12V, the base earth of power supply chip U1, the plus earth of the first voltage-stabiliser tube ZD1, negative pole is connected with the second DC power supply;
Relay the first pin is connected with the live wire of AC power, and the second pin is connected with the zero line of AC power, and the 3rd pin is connected with power supply VCC, and the 4th pin is connected with the second DC power supply of+12V; Between the 3rd pin of relay and the 4th pin, connect the second diode D2.
2. a kind of circuit that reduces power supply quiescent dissipation according to claim 1, is characterized in that: piezo-resistance VVR1 one end is connected with the zero line of AC power, and the other end is connected with insurance resistance; Connect one end of the first resistance R 1 and the 3rd resistance R 3, the second resistance R 2, the two ends of the first capacitor C 1 connects between the first resistance R 1 and the 3rd resistance R 3, other end Z0 ground connection.
3. a kind of circuit that reduces power supply quiescent dissipation according to claim 2, it is characterized in that: one end of the 6th resistance R 6 is connected with the first DC power supply of+5V, the other end is connected with the base stage of the second triode Q2, one end of the 7th resistance R 7 is connected with the base stage of the second triode Q2, and the other end is connected with low power consumption control pin P_HT.
4. a kind of circuit that reduces power supply quiescent dissipation according to claim 3, is characterized in that: the first negative pole of diode D1 and the zero line of AC power are connected, other end ground connection.
5. a kind of circuit that reduces power supply quiescent dissipation according to claim 4, is characterized in that: one end ground connection of the second capacitor C 2, the other end is connected with the collector electrode of power supply chip U1.
6. a kind of circuit that reduces power supply quiescent dissipation according to claim 5, is characterized in that: one end ground connection of the first electrochemical capacitor, the other end is connected with the emitter of power supply chip U1.
7. a kind of circuit that reduces power supply quiescent dissipation according to claim 6, is characterized in that: one end of the second electrochemical capacitor is connected with power supply VCC, and the other end is connected with the second DC power supply of+12V.
8. a kind of circuit that reduces power supply quiescent dissipation according to claim 7, is characterized in that: one end ground connection of the 3rd electrochemical capacitor, the other end is connected with the collector electrode of power supply chip U1.
9. a kind of circuit that reduces power supply quiescent dissipation according to claim 8, is characterized in that: the first triode Q1 is positive-negative-positive triode, and the second triode Q2 is NPN type triode.
10. a kind of circuit that reduces power supply quiescent dissipation according to claim 1, is characterized in that: between the first pin of relay and the live wire of AC power, be connected peg graft by male and female plug-in unit H1, H2 are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574547.8A CN103580515A (en) | 2013-11-15 | 2013-11-15 | Circuit for reducing power source static power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574547.8A CN103580515A (en) | 2013-11-15 | 2013-11-15 | Circuit for reducing power source static power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103580515A true CN103580515A (en) | 2014-02-12 |
Family
ID=50051621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310574547.8A Pending CN103580515A (en) | 2013-11-15 | 2013-11-15 | Circuit for reducing power source static power consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103580515A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843182A (en) * | 1981-09-04 | 1983-03-12 | Omron Tateisi Electronics Co | Dc power source circuit |
| CN101741269A (en) * | 2009-12-31 | 2010-06-16 | 深圳和而泰智能控制股份有限公司 | Capacitor voltage-dropping power supply circuit and device thereof |
| CN201556975U (en) * | 2009-09-04 | 2010-08-18 | 张红碧 | Standby automatic power-off device with intelligence, safety and energy conservation |
| CN202889232U (en) * | 2012-05-08 | 2013-04-17 | 无锡艾立德智能科技有限公司 | Low-power-consumption double-channel power supply energy-saving circuit |
-
2013
- 2013-11-15 CN CN201310574547.8A patent/CN103580515A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843182A (en) * | 1981-09-04 | 1983-03-12 | Omron Tateisi Electronics Co | Dc power source circuit |
| CN201556975U (en) * | 2009-09-04 | 2010-08-18 | 张红碧 | Standby automatic power-off device with intelligence, safety and energy conservation |
| CN101741269A (en) * | 2009-12-31 | 2010-06-16 | 深圳和而泰智能控制股份有限公司 | Capacitor voltage-dropping power supply circuit and device thereof |
| CN202889232U (en) * | 2012-05-08 | 2013-04-17 | 无锡艾立德智能科技有限公司 | Low-power-consumption double-channel power supply energy-saving circuit |
Non-Patent Citations (1)
| Title |
|---|
| HTTP://BLOG.CSDN.NET/LIBIAOJS/ARTICLE/DETAILS/10018835: "阻容降压电源中降低静态功耗的经典电路图", 《博客频道-CSDN.NET》, 17 August 2013 (2013-08-17), pages 1 - 2 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104007709B (en) | Electrical equipment and control device and control method thereof | |
| CN204993053U (en) | Isolation power of multiplexed output | |
| CN103532533B (en) | A kind of power supply timing management circuit | |
| CN202547004U (en) | Air conditioner and RS485 bus system thereof | |
| CN202996717U (en) | Relay drive circuit in resistance-capacitance voltage drop-down circuit | |
| CN103580515A (en) | Circuit for reducing power source static power consumption | |
| CN201690066U (en) | Portable electric timing device | |
| CN208656439U (en) | A kind of cruising inspection system for lithium battery communication backup power supply | |
| CN202026511U (en) | LED constant current constant voltage electricity obtaining system | |
| CN207502953U (en) | Power supply sequencing control circuit | |
| CN102044379A (en) | Relay control device | |
| CN101861025B (en) | LED light emitting device and drive circuit thereof | |
| CN201523129U (en) | Full-shutdown computer socket | |
| CN205847088U (en) | A kind of power circuit being applied to USB Type c expanding unit | |
| CN203261314U (en) | Modulator circuit based on NAND gate integrated circuit | |
| CN203482457U (en) | Human body induction or sound control led lamp | |
| CN203289546U (en) | Power supply standby circuit and LED (light-emitting diode) liquid crystal display television | |
| CN203840610U (en) | LED circuit having stand-by power source circuit | |
| CN204031115U (en) | A kind of pneumatic operated valve drive circuit | |
| CN204538795U (en) | A kind of IPM electric power UPS device based on IPM inversion module | |
| CN203434941U (en) | Power amplifier with standby function | |
| CN204376404U (en) | A kind of direct current relaying power supply with electric polarity reversal connection protection function | |
| CN202135239U (en) | Solar TV | |
| CN202150938U (en) | Solar music system | |
| CN206364583U (en) | A kind of high-power power-off restoration device for once-through type actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |