CN205489708U - Power supply circuit with input source recognition function - Google Patents
Power supply circuit with input source recognition function Download PDFInfo
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- CN205489708U CN205489708U CN201620276634.4U CN201620276634U CN205489708U CN 205489708 U CN205489708 U CN 205489708U CN 201620276634 U CN201620276634 U CN 201620276634U CN 205489708 U CN205489708 U CN 205489708U
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Abstract
The utility model provides a power supply circuit with input source recognition function, it relates to power supply circuit technical field. It includes that commercial power step -down 24V direct -current input end, group battery cluster power supply port, chip control power port, button, button detect the mouth, 5V makes and to hold and implementation of circuit, the chip control power port two pins have, a pin ground connection, the 5V power is connected to pin, the button two pins have, a pin ground connection, implementation of circuit's SW end is connected to pin, implementation of circuit connects respectively that commercial power step -down 24V direct -current input end, group battery cluster power supply port, chip control power port, button, button detect mouthful, 5V makes and to hold. It can break off the chip control power when battery powered, reduce static stand -by power consumption, promotes the practical utilization ratio of battery, also can reduce to use the number of times, improves the life -span of battery.
Description
Technical field
This utility model relates to power circuit technical field, is specifically related in a kind of chip control circuit being usually used in low-voltage, it is possible to identify the power circuit of the blood pressure lowering of input source.
Background technology
Mobile fan application is increasingly wider, as being used for travelling, and fishing.This kind of fan typically has mains-supplied and battery powered dual power supply function.When indoor use or charging, civil power it is down to cell voltage by Switching Power Supply, drives control circuit and the direct current generator of fan；When outdoor application, battery-powered.
Common mobile fan power circuit such as accompanying drawing 1, civil power blood pressure lowering 24V feeder ear passes through charge circuit, to set of cells statements based on collusion electricity, also can power to fan simultaneously.When in outdoor or civil power power down, set of cells string provides energy to fan.
Energy Efficiency Ratio is an important performance parameter of fan.The life-span of battery is also limited, is less than 500 times as deeply filled the lead-acid battery life-span deeply put, and the life-span of ferric phosphate lithium cell is less than 1000 times.Therefore, the static standby power how reducing battery, the life-span improving battery become problem demanding prompt solution in industry.
Utility model content
The purpose of this utility model is to provide a kind of power circuit with input source identification function, and it can disconnect chip controls power supply when battery is powered, reduce static stand-by power consumption, promote the practical utilization rate of battery, it is also possible to reduce access times, improve the life-span of battery.
In order to solve the problem existing for background technology, this utility model is by the following technical solutions: it includes civil power blood pressure lowering 24V direct-flow input end, set of cells string supply port Vbatt, chip controls power port Vcc, button K1, button detection mouth Kdect, 5V Enable Pin 5Von and performs circuit A, described civil power blood pressure lowering 24V direct-flow input end has two pins, one pin ground connection, a pin connects 24V DC voltage；Described set of cells string supply port Vbatt has two pins, a pin ground connection, and a pin connects battery anode end；Described chip controls power port Vcc has two pins, a pin ground connection, and a pin connects 5V power supply；Described button K1 has two pins, a pin ground connection, and a pin connects the SW end performing circuit A；
nullDescribed execution circuit A includes resistance one～resistance ten R1～R10、Electric capacity C1、Electrochemical capacitor E1、Audion one～audion three Q1～Q3、Diode one～diode three D1～D3、Zener diode Z1，The anode of diode one D1 is connected with set of cells string supply port Vbatt，The negative electrode of diode one D1 respectively with the negative electrode of diode two D2、One end of resistance three R3、One end of resistance one R1 is connected，The other end of resistance one R1 respectively with one end of resistance two R2、The colelctor electrode of audion one Q1 is connected，The other end of resistance two R2 is connected with the emitter stage of audion two Q2，The base stage of audion two Q2 respectively with the other end of resistance three R3、One end of resistance five R5、One end of resistance four R4 is connected，The other end of resistance five R5 is connected with the colelctor electrode of audion three Q3，The grounded emitter of audion three Q3，The base stage of audion three Q3 respectively with one end of resistance eight R8、One end of resistance seven R7、One end of resistance six R6 is connected，The other end of resistance eight R8 connects 5V Enable Pin 5Von，The other end ground connection of resistance seven R7，The other end of resistance six R6 is connected with civil power blood pressure lowering 24V direct-flow input end after being connected with the anode of diode two D2，The colelctor electrode of audion two Q2 respectively with the base stage of audion one Q1、The negative electrode of Zener diode Z1 is connected，The emitter stage of audion one Q1 respectively with one end of electric capacity C1、The positive pole of electrochemical capacitor E1 is connected to chip controls power port Vcc after being connected，The anode of Zener diode Z1 respectively with the other end of electric capacity C1、The negative pole of electrochemical capacitor E1 is connected and ground connection，The other end of resistance four R4 respectively with one end of resistance ten R10、One end SW of button K1 is connected，The other end of resistance ten R10 is connected with the negative electrode of diode three D3，The anode of diode three D3 connects one end of resistance nine R9 respectively、Button detection mouth Kdect，And the other end of resistance nine R9 connects 5V power supply.
The voltage of described chip controls power port Vcc is the one in 5Vdc, 3.3Vdc, 1.5Vdc.
This utility model has the advantages that
There is the identification function in supply input source, more energy efficient.When battery is powered, chip controls power supply can be disconnected, reduce static stand-by power consumption, promote the practical utilization rate of battery, it is also possible to reduce access times, improve the life-span of battery.
Accompanying drawing explanation
Fig. 1 is the chip controls power circuit of the dual power supply in background technology；
Fig. 2 is electrical block diagram of the present utility model；
Description of reference numerals:
24V civil power blood pressure lowering 24V direct-flow input end；Vbatt set of cells string supply port；Vcc chip controls power port；K1 button；Kdect button detection mouth；5Von 5V Enable Pin；A performs circuit；
R1 resistance one；R2 resistance two；R3 resistance three；R4 resistance four；R5 resistance five；R6 resistance six；R7 resistance seven；R8 resistance eight；R9 resistance nine；R10 resistance ten；C1 electric capacity；E1 electrochemical capacitor；Q1 audion one；Q2 audion two；Q3 audion three；D1 diode one；D2 diode two；D3 diode three；Z1 Zener diode.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that detailed description of the invention described herein, only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 2, this detailed description of the invention is by the following technical solutions: it includes civil power blood pressure lowering 24V direct-flow input end, set of cells string supply port Vbatt, chip controls power port Vcc, button K1, button detection mouth Kdect, 5V Enable Pin 5Von and performs circuit A, described civil power blood pressure lowering 24V direct-flow input end has two pins, one pin ground connection, a pin connects 24V DC voltage；Described set of cells string supply port Vbatt has two pins, a pin ground connection, and a pin connects battery anode end；Described chip controls power port Vcc has two pins, a pin ground connection, and a pin connects 5V power supply；Described button K1 has two pins, a pin ground connection, and a pin connects the SW end performing circuit A；
nullDescribed execution circuit A includes resistance one～resistance ten R1～R10、Electric capacity C1、Electrochemical capacitor E1、Audion one～audion three Q1～Q3、Diode one～diode three D1～D3、Zener diode Z1，The anode of diode one D1 is connected with set of cells string supply port Vbatt，The negative electrode of diode one D1 respectively with the negative electrode of diode two D2、One end of resistance three R3、One end of resistance one R1 is connected，The other end of resistance one R1 respectively with one end of resistance two R2、The colelctor electrode of audion one Q1 is connected，The other end of resistance two R2 is connected with the emitter stage of audion two Q2，The base stage of audion two Q2 respectively with the other end of resistance three R3、One end of resistance five R5、One end of resistance four R4 is connected，The other end of resistance five R5 is connected with the colelctor electrode of audion three Q3，The grounded emitter of audion three Q3，The base stage of audion three Q3 respectively with one end of resistance eight R8、One end of resistance seven R7、One end of resistance six R6 is connected，The other end of resistance eight R8 connects 5V Enable Pin 5Von，The other end ground connection of resistance seven R7，The other end of resistance six R6 is connected with civil power blood pressure lowering 24V direct-flow input end after being connected with the anode of diode two D2，The colelctor electrode of audion two Q2 respectively with the base stage of audion one Q1、The negative electrode of Zener diode Z1 is connected，The emitter stage of audion one Q1 respectively with one end of electric capacity C1、The positive pole of electrochemical capacitor E1 is connected to chip controls power port Vcc after being connected，The anode of Zener diode Z1 respectively with the other end of electric capacity C1、The negative pole of electrochemical capacitor E1 is connected and ground connection，The other end of resistance four R4 respectively with one end of resistance ten R10、One end SW of button K1 is connected，The other end of resistance ten R10 is connected with the negative electrode of diode three D3，The anode of diode three D3 connects one end of resistance nine R9 respectively、Button detection mouth Kdect，And the other end of resistance nine R9 connects 5V power supply.
In the double power supply circuit of this detailed description of the invention, it is the most useful for having input source identification function, is analyzed as follows:
When being powered by electrical network blood pressure lowering, can be real-time after reduction voltage circuit to battery resistance statements based on collusion electricity, battery now can be protected to be in full state, can guarantee that the device powers down such as fan uses at any time.Principle be 24V after resistance six R6, resistance seven R7 dividing potential drop, make audion one Q1 audion three Q3 turn on, at this moment chip controls power port Vcc or 5V can set up, and the most external 5V Enable Pin 5Von does not send high level.
When being in the off-positions such as outdoor when equipment such as fans, or during originally by mains-supplied, audion three Q3 is not turned on, and causes audion one Q1, audion two Q2 to be also not turned on.Chip controls power port Vcc or 5V can not set up.Battery does not discharges, and saves electric energy, extends the life-span.At this moment the equipment such as fan is by set of cells statements based on collusion electricity.
During by set of cells statements based on collusion electricity, must by the artificial K1 that pushes button, at this moment cell voltage Vbatt through diode one D1, resistance three R3, resistance four R4, button K1 to, the base stage of audion two Q2 is divided and is turned in pressure drop, diode three Q3 sets up also into magnifying state, chip voltage Vcc.The control chip of fan powers on and starts working, and whether detection button detection mouth Kdect is artificially pressed as low level immediately.Because staff button process about more than 100ms, is much more slowly than the detection speed of chip.Because detecting that button K1 is pressed, then another port 5V Enable Pin 5Von of control chip sends high level, makes chip voltage Vcc set up, and is equivalent to interlocking.Afterwards, when fan is to be shut down, can only push button K1 again, after button detection mouth Kdect scans low level, and another port 5V Enable Pin 5Von output low level.Audion one Q1 audion three Q3 enters cut-off state, chip voltage Vcc dead electricity.Battery does not discharges, and saves electric energy, extends the life-span.
The operation of diode three D3 is the port stoping the high voltage (such as 6-90V) of resistor group string to seal in chip, and resistance nine R9 is that chip port plays pull-up effect.
The above is only in order to illustrate the technical solution of the utility model and unrestricted, other amendment or equivalent that the technical solution of the utility model is made by those of ordinary skill in the art, without departing from the spirit and scope of technical solutions of the utility model, all should contain in the middle of right of the present utility model.
Claims (2)
1. a power circuit with input source identification function, it is characterised in that it includes city
Electricity blood pressure lowering 24V direct-flow input end, set of cells string supply port (Vbatt), chip controls power end
Mouth (Vcc), button (K1), button detection mouth (Kdect), 5V Enable Pin (5Von) and execution
Circuit (A), described civil power blood pressure lowering 24V direct-flow input end has two pins, a pin
Ground connection, a pin connects 24V DC voltage；Described set of cells string supply port (Vbatt)
Having two pins, a pin ground connection, a pin connects battery anode end；Described
Chip controls power port (Vcc) has two pins, a pin ground connection, and a pin is even
Connect 5V power supply；Described button (K1) has two pins, a pin ground connection, and one is drawn
Foot connects the SW end performing circuit (A)；
Described execution circuit (A) include resistance one～resistance ten (R1～R10), electric capacity (C1),
Electrochemical capacitor (E1), audion one～audion three (Q1～Q3), diode one～diode three
(D1～D3), Zener diode (Z1), the anode of diode one (D1) and set of cells string feeder ear
Mouthful (Vbatt) is connected, the negative electrode of diode one (D1) respectively with negative electrode, the electricity of diode two (D2)
Resistance one end of three (R3), one end of resistance one (R1) are connected, and the other end of resistance one (R1) is respectively
It is connected with one end, the colelctor electrode of audion one (Q1) of resistance two (R2), resistance two (R2) another
One end is connected with the emitter stage of audion two (Q2), the base stage of audion two (Q2) respectively with resistance
The other end of three (R3), one end of resistance five (R5), one end of resistance four (R4) are connected, resistance
The other end of five (R5) is connected with the colelctor electrode of audion three (Q3), the transmitting of audion three (Q3)
Pole ground connection, the base stage of audion three (Q3) respectively with one end, the resistance seven (R7) of resistance eight (R8)
One end, one end of resistance six (R6) be connected, the other end of resistance eight (R8) connects 5V and enables
End (5Von), the other end ground connection of resistance seven (R7), the other end of resistance six (R6) and diode
The anode of two (D2) is connected with civil power blood pressure lowering 24V direct-flow input end after connecting, audion two (Q2)
Colelctor electrode be connected with base stage, the negative electrode of Zener diode (Z1) of audion one (Q1) respectively,
The emitter stage of audion one (Q1) respectively with one end, the positive pole of electrochemical capacitor (E1) of electric capacity (C1)
Be connected to chip controls power port (Vcc) after Xiang Lianing, the anode of Zener diode (Z1) respectively with
The other end of electric capacity (C1), the negative pole of electrochemical capacitor (E1) are connected and ground connection, resistance four (R4)
The other end is connected with one end, one end SW of button (K1) of resistance ten (R10) respectively, resistance
The other end of ten (R10) is connected with the negative electrode of diode three (D3), and the anode of diode three (D3) divides
Not Lian Jie one end of resistance nine (R9), button detection mouth (Kdect), and another of resistance nine (R9)
End connects 5V power supply.
A kind of power circuit with input source identification function the most according to claim 1,
The voltage that it is characterized in that described chip controls power port (Vcc) is 5Vdc, 3.3Vdc,
One in 1.5Vdc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276634.4U CN205489708U (en) | 2016-04-01 | 2016-04-01 | Power supply circuit with input source recognition function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276634.4U CN205489708U (en) | 2016-04-01 | 2016-04-01 | Power supply circuit with input source recognition function |
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| CN205489708U true CN205489708U (en) | 2016-08-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501723A (en) * | 2016-09-27 | 2017-03-15 | 宁波三星医疗电气股份有限公司 | A kind of for external battery detection circuit in three-phase kilowatt-hour meter |
| CN109831096A (en) * | 2018-12-28 | 2019-05-31 | 佛山市顺德区携创电机制造有限公司 | A kind of controllable low power consumption power supply circuit |
| CN110445222A (en) * | 2019-08-27 | 2019-11-12 | 厦门炬研电子科技有限公司 | A kind of lithium battery group charging-discharging controller |
-
2016
- 2016-04-01 CN CN201620276634.4U patent/CN205489708U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501723A (en) * | 2016-09-27 | 2017-03-15 | 宁波三星医疗电气股份有限公司 | A kind of for external battery detection circuit in three-phase kilowatt-hour meter |
| CN106501723B (en) * | 2016-09-27 | 2019-04-12 | 宁波三星医疗电气股份有限公司 | It is a kind of for battery detection circuit external in three-phase kilowatt-hour meter |
| CN109831096A (en) * | 2018-12-28 | 2019-05-31 | 佛山市顺德区携创电机制造有限公司 | A kind of controllable low power consumption power supply circuit |
| CN109831096B (en) * | 2018-12-28 | 2024-06-21 | 广东携创电机有限公司 | Controllable low-power consumption power supply circuit |
| CN110445222A (en) * | 2019-08-27 | 2019-11-12 | 厦门炬研电子科技有限公司 | A kind of lithium battery group charging-discharging controller |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528000 Daliang feie Industrial Zone, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Zhichuang Electric Co.,Ltd. Address before: 528300 Daliang feie Industrial Zone, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN CITY SHUNDE DISTRICT XIECHUANG MOTOR MANUFACTURING CO.,LTD. |
|
| CP03 | Change of name, title or address |