CN109274074A - A kind of switching circuit reducing air-conditioner controller quiescent current - Google Patents
A kind of switching circuit reducing air-conditioner controller quiescent current Download PDFInfo
- Publication number
- CN109274074A CN109274074A CN201811009184.2A CN201811009184A CN109274074A CN 109274074 A CN109274074 A CN 109274074A CN 201811009184 A CN201811009184 A CN 201811009184A CN 109274074 A CN109274074 A CN 109274074A
- Authority
- CN
- China
- Prior art keywords
- conditioner controller
- quiescent current
- power supply
- air
- switching circuit
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to technology of air-conditioning controller fields, specifically disclose a kind of switching circuit for reducing air-conditioner controller quiescent current, are equipped with logic switch device；The logic switch devices in series is used in power supply chip suspend mode in the supply main of air-conditioner controller after power-off signal.A kind of switching circuit reducing air-conditioner controller quiescent current provided by the invention, it is connected in the supply main of air-conditioner controller, and it is connected on the power supply output line VCC of power supply chip simultaneously, when power supply chip exports 0V, separate the electric signal of the supply main of the air-conditioner controller, to by the quiescent current of voltage monitoring in battery line and hang over other quiescent currents in the battery line and all eliminate, the only quiescent current of remaining power supply chip.The present invention can farthest reduce the quiescent current of air-conditioner controller, reach the requirement of ultra low quiescent current without configuration software without occupying MCU pin resource.
Description
Technical field
The present invention relates to technology of air-conditioning controller field more particularly to a kind of switches for reducing air-conditioner controller quiescent current
Circuit.
Background technique
Requirement of the depot to air-conditioner controller quiescent current at present is more and more harsh, for example requires to be lower than 0.1mA.And it is only electric
The quiescent current 0.053mA of source chip, in addition the quiescent current 0.035mA of battery line (such as KL30 line) voltage monitoring, has had
The quiescent current of 0.088mA, if the surplus of quiescent current is very plus the quiescent current of other circuits hung in battery line
Small or even quiescent current summation exceeds 0.1mA, and the requirement of ultra low quiescent current is not achieved.
Summary of the invention
The present invention provides a kind of switching circuit for reducing air-conditioner controller quiescent current, and the technical issues of solution is, existing
The quiescent current of air-conditioner controller the quiescent current of voltage monitoring and is hung in the battery line in addition to power supply chip, in battery line
Other quiescent currents, quiescent current summation is excessive, and the requirement of ultra low quiescent current is not achieved.
In order to solve the above technical problems, the present invention provides a kind of switching circuit for reducing air-conditioner controller quiescent current, if
There is logic switch device；The logic switch devices in series is in the supply main of air-conditioner controller, for stopping in power supply chip
It sleeps after power-off signal.
Further, the logic switch device control terminal simultaneously be connected to air-conditioner controller power supply chip for electricity output
On line (VCC), when the power supply chip exports 0V, separate the electric signal of the supply main of the air-conditioner controller.
Specifically, the supply main is vehicle-mounted KL30 battery line.
Preferably, the logic switch device includes the one or two of triode, field-effect tube.
Preferably, the logic switch device includes the first triode (Q1) and the second triode (Q2)；Described 1st
The base stage of pole pipe (Q1) connects the power supply output line (VCC) of the power supply chip, emitter ground connection, current collection as the control terminal
Pole connects the base stage of second triode (Q2) as switching signal output end；The emitter of second triode (Q2) is made
The supply main (KL30) of the air-conditioner controller is connected for the control terminal, collector is as switching signal output end.
Preferably, first triode (Q1) is NPN type, and second triode (Q2) is positive-negative-positive.
In the preferred embodiment of the present invention, low pressure difference linear voltage regulator is equipped in the power supply chip, in normal work
As when export 5V, export 0V in suspend mode.
In another preferred embodiment of the invention, the power supply chip is that system base chip (is internally integrated power supply mould
Block and bus portion), when the system base chip is in standby mode or operating mode, the power supply chip is normally defeated
5V out；When the system base chip is in suspend mode, the power supply chip normally exports 0V.
A kind of switching circuit reducing air-conditioner controller quiescent current provided by the invention, is connected on the confession of air-conditioner controller
It on electric main line, and is connected on the power supply output line VCC of power supply chip simultaneously, when power supply chip exports 0V, separates the air-conditioning
The electric signal of the supply main of controller, to by the quiescent current of voltage monitoring in battery line and hang in the battery line
Other quiescent currents are all eliminated, and only the quiescent current of remaining power supply chip, need to only select the power supply core for meeting quiescent current demand
Piece.The present invention can farthest reduce air-conditioner controller without occupying MCU pin resource without configuration software
Quiescent current reaches the requirement of ultra low quiescent current, and structure is simply easily built, only need to be using conventional electricals member devices such as triodes
Part, cost are also low.
Detailed description of the invention
Fig. 1 is a kind of circuit theory of switching circuit for reducing air-conditioner controller quiescent current provided in an embodiment of the present invention
Figure；
Fig. 2 is circuit connection diagram of the Fig. 1 provided in an embodiment of the present invention with the voltage monitoring line in battery line.
Specific embodiment
Embodiments of the present invention are specifically illustrated with reference to the accompanying drawing, embodiment is only given for illustrative purposes,
It can not be interpreted as limitation of the invention, type selecting and value size and attached drawing including component are only preferred embodiment, no
The limitation to the invention patent protection scope is constituted, because on the basis of not departing from spirit and scope of the invention, it can be to this hair
It is bright to carry out many changes.
A kind of switching circuit for reduction air-conditioner controller quiescent current that the embodiment of the present invention 1 provides, circuit theory is such as
Shown in Fig. 1, it is equipped with logic switch device 1；The logic switch device 1 is connected on the supply main L+ of air-conditioner controller, is used
In in power supply chip suspend mode after power-off signal.The supply main L+ is vehicle-mounted KL30 battery line, is connected to automobile batteries
On anode.
As a preferred embodiment of the present invention, 1 control terminal of logic switch device is connected to air-conditioner controller simultaneously
On the power supply output line VCC of power supply chip, when the power supply chip exports 0V, separate the supply main of the air-conditioner controller
(KL30) electric signal.Using power supply chip power work when and characteristic when suspend mode, change logic switch device 1 and powering
Connection or off-state on main line (KL30), so that isolation circuitry, can completely eliminate being followed by for supply main (KL30)
The quiescent current of circuit.
It is voltage monitoring line as preferred embodiment to be followed by circuit, is Fig. 1 provided in an embodiment of the present invention referring to fig. 2
With the circuit connection diagram of the voltage monitoring line in battery line.In Fig. 2, the logic switch device 1 is triode, but in electricity
In subdomains, the switching devices such as field-effect tube are able to achieve same function.
Preferably, the logic switch device 1 includes the first triode Q1 and the second triode Q2, first triode
Q1 preferably uses NPN type triode, and the second triode Q2 preferably uses PNP type triode.The first triode Q1's
Base stage (B) connects the power supply output line VCC of the power supply chip, emitter (E) ground connection, collector (C) as the control terminal
The base stage (B) of the second triode Q2 is connected as switching signal output end；The emitter (E) of the second triode Q2 is made
The supply main KL30 of the air-conditioner controller is connected for the control terminal, collector (C) is connected as switching signal output end
Voltage monitoring line 2.The voltage sense line includes the collector (C) and ground being sequentially connected in series in the second triode Q2
Between first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4, be additionally provided with and be connected in parallel on the 4th resistance R4 two
The zener diode D and capacitor C at end, the plus earth of the zener diode D, cathode is as voltage detection terminal KL30_MON.
It should be strongly noted that being equipped with low pressure difference linear voltage regulator in the power supply chip of on-board air conditioner controller
(LDO), 5V is exported in normal work, exports 0V in suspend mode, and the 0V exported in suspend mode makes the air-conditioner controller
Supply main (KL30) open circuit, so that voltage monitoring line 2 no longer receives power supply signal, to will not have Static Electro
Stream.
In other words, the power supply chip is the system base chip (SBC, system basis chip) of pattern switching, interior
Portion's integrated power supply module and bus portion.So-called pattern switching is, when the system base chip is in standby mode
(Standby) or when operating mode (Active), the power supply chip normally exports 5V；When the system base chip is in
When suspend mode (Sleep), the power supply chip normally exports 0V, and the 0V exported in suspend mode makes the air-conditioner controller
Supply main (KL30) open circuit, so that voltage monitoring line 2 no longer receives power supply signal, to will not have Static Electro
Stream.
A kind of switching circuit reducing air-conditioner controller quiescent current provided in an embodiment of the present invention, however it is not limited to be used in figure
It is equally applicable for hanging over the All other routes in the battery line in 2 scene.
A kind of switching circuit reducing air-conditioner controller quiescent current provided in an embodiment of the present invention, is connected on airconditioning control
On the supply main L+ of device, and connected on the power supply output line VCC of power supply chip simultaneously, when power supply chip exports 0V, partition
The electric signal of the supply main of the air-conditioner controller, to by the quiescent current of voltage monitoring in battery line and hang over the electricity
Other quiescent currents on the line of pond are all eliminated, and only the quiescent current of remaining power supply chip, only need to select to meet quiescent current demand
Power supply chip.The present invention can farthest reduce air-conditioning without occupying MCU pin resource without configuration software
The quiescent current of controller reaches the requirement of ultra low quiescent current, and structure is simple, and component is at low cost.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of switching circuit for reducing air-conditioner controller quiescent current, which is characterized in that be equipped with logic switch device；It is described to patrol
It collects switching device to be connected in the supply main of air-conditioner controller, be used in power supply chip suspend mode after power-off signal.
2. a kind of switching circuit for reducing air-conditioner controller quiescent current as described in claim 1, it is characterised in that: described to patrol
It collects switching device control terminal to be connected on the power supply output line (VCC) of air-conditioner controller power supply chip simultaneously, when the power supply core
When piece exports 0V, separate the electric signal of the supply main of the air-conditioner controller.
3. a kind of switching circuit for reducing air-conditioner controller quiescent current as claimed in claim 2, it is characterised in that: the confession
Electric main line is vehicle-mounted KL30 battery line.
4. a kind of switching circuit for reducing air-conditioner controller quiescent current as claimed in claim 2, it is characterised in that: described to patrol
Collect the one or two that switching device includes triode, field-effect tube.
5. a kind of switching circuit for reducing air-conditioner controller quiescent current as claimed in claim 4, it is characterised in that: described to patrol
Collecting switching device includes the first triode (Q1) and the second triode (Q2)；Described in the base stage of first triode (Q1) is used as
Control terminal connects the power supply output line (VCC) of the power supply chip, emitter ground connection, and collector connects as switching signal output end
Connect the base stage of second triode (Q2)；The emitter of second triode (Q2) connects the sky as the control terminal
The supply main (KL30) of controller is adjusted, collector is as switching signal output end.
6. a kind of switching circuit for reducing air-conditioner controller quiescent current as claimed in claim 5, it is characterised in that: described the
One triode (Q1) is NPN type, and second triode (Q2) is positive-negative-positive.
7. a kind of switching circuit for reducing air-conditioner controller quiescent current as described in claim 1, it is characterised in that: the electricity
It is equipped with low pressure difference linear voltage regulator in source chip, exports 5V in normal work, exports 0V in suspend mode.
8. a kind of switching circuit for reducing air-conditioner controller quiescent current as described in claim 1, it is characterised in that: the electricity
Source chip is system base chip, when the system base chip is in standby mode or operating mode, the power supply core
Piece normally exports 5V；When the system base chip is in suspend mode, the power supply chip normally exports 0V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009184.2A CN109274074A (en) | 2018-08-31 | 2018-08-31 | A kind of switching circuit reducing air-conditioner controller quiescent current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009184.2A CN109274074A (en) | 2018-08-31 | 2018-08-31 | A kind of switching circuit reducing air-conditioner controller quiescent current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109274074A true CN109274074A (en) | 2019-01-25 |
Family
ID=65154847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811009184.2A Pending CN109274074A (en) | 2018-08-31 | 2018-08-31 | A kind of switching circuit reducing air-conditioner controller quiescent current |
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| Country | Link |
|---|---|
| CN (1) | CN109274074A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208591A (en) * | 2019-04-30 | 2019-09-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of voltage detecting circuit and automobile of low quiescent current |
| CN114056265A (en) * | 2021-09-29 | 2022-02-18 | 宁波普瑞均胜汽车电子有限公司 | Anti-interference touch awakening system and method thereof |
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| CN204732949U (en) * | 2015-07-16 | 2015-10-28 | 重庆三峡学院 | A kind of without quiescent dissipation intelligent charger |
| CN204870835U (en) * | 2015-07-07 | 2015-12-16 | 惠州市华阳多媒体电子有限公司 | HUD standby quiescent current control circuit |
| CN206650446U (en) * | 2017-01-05 | 2017-11-17 | 深圳拓邦股份有限公司 | A kind of low-power consumption standby circuit of BMS |
-
2018
- 2018-08-31 CN CN201811009184.2A patent/CN109274074A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204870835U (en) * | 2015-07-07 | 2015-12-16 | 惠州市华阳多媒体电子有限公司 | HUD standby quiescent current control circuit |
| CN204732949U (en) * | 2015-07-16 | 2015-10-28 | 重庆三峡学院 | A kind of without quiescent dissipation intelligent charger |
| CN206650446U (en) * | 2017-01-05 | 2017-11-17 | 深圳拓邦股份有限公司 | A kind of low-power consumption standby circuit of BMS |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208591A (en) * | 2019-04-30 | 2019-09-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of voltage detecting circuit and automobile of low quiescent current |
| CN110208591B (en) * | 2019-04-30 | 2021-07-30 | 惠州市德赛西威汽车电子股份有限公司 | Voltage detection circuit with low quiescent current and automobile |
| CN114056265A (en) * | 2021-09-29 | 2022-02-18 | 宁波普瑞均胜汽车电子有限公司 | Anti-interference touch awakening system and method thereof |
| CN114056265B (en) * | 2021-09-29 | 2023-10-31 | 宁波普瑞均胜汽车电子有限公司 | Anti-interference wake-on-touch system and method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |
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| RJ01 | Rejection of invention patent application after publication |