CN206790132U - A kind of dual input power supply circuit for portable power source - Google Patents
A kind of dual input power supply circuit for portable power source Download PDFInfo
- Publication number
- CN206790132U CN206790132U CN201720083180.3U CN201720083180U CN206790132U CN 206790132 U CN206790132 U CN 206790132U CN 201720083180 U CN201720083180 U CN 201720083180U CN 206790132 U CN206790132 U CN 206790132U
- Authority
- CN
- China
- Prior art keywords
- input
- voltage
- supply circuit
- stablizer
- diode
- 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.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of dual input power supply circuit for portable power source, including the first power input (VBOUT+), second source input (VCC BAT), the first diode D13, the second diode D14, voltage-stablizer and power output end (5V VDD)；First power input is used to connect with the positive pole of automobile batteries；Second source input is used for the positive pole for connecing dry cell batteries；First power input connects the input of voltage-stablizer through the first diode D13；Second source input connects the input of voltage-stablizer through the second diode D14；The output end of voltage-stablizer is power output end；The output end of voltage-stablizer exports 3.3~5V DC voltage.The dual input power supply circuit for being used for portable power source is powered using dry cell or automobile batteries, and the occasion for being particularly suitable for no AC-powered charges for portable power source.
Description
Technical field
More particularly to a kind of dual input power supply circuit for portable power source of the utility model.
Background technology
Portable power source is widely used, and existing portable power source is typically all to connect AC power by power supply adaptor to obtain electricity
Can, still, just becoming highly difficult using the inconvenient occasion of alternating current, charging.
Therefore, it is necessary to design a kind of dual input power supply circuit for portable power source.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of dual input power supply circuit for portable power source, should
Dual input power supply circuit for portable power source is powered using dry cell or automobile batteries, is particularly suitable for no AC-powered
Occasion charges for portable power source.
The technical solution of utility model is as follows：
A kind of dual input power supply circuit for portable power source, including the first power input (VBOUT+), second source
Input (VCC-BAT), the first diode D13, the second diode D14, voltage-stablizer and power output end (5V-VDD)；
First power input is used to connect with the positive pole of automobile batteries；
Second source input is used for the positive pole for connecing dry cell batteries；Dry cell batteries include three section dry cells, often save 1.5V, defeated
Go out for 4.5V；
First power input connects the input of voltage-stablizer through the first diode D13；Second source input is through the two or two
Pole pipe D14 connects the input of voltage-stablizer；
The output end of voltage-stablizer is power output end；The output end of voltage-stablizer exports 3.3~5V DC voltage.
Described the first diode D13, the second diode D14 is BAT54CW type Schottky-barrier diodes.
Described voltage-stablizer is ME6119A33PG type voltage-stablizers.
The input of voltage-stablizer is provided with electrochemical capacitor (C40)；The input and output of voltage-stablizer are also respectively connected to one
Non-electrolytic capacitor (C37 and C51)；The capacitance of described electrochemical capacitor is 47uF, and the capacitance of described non-electrolytic capacitor is
0.1uF。
Second input is connected through resistance R23 with the second diode D14 positive pole.
Resistance R23 resistance is 10 ohm.
First diode D13 is formed in parallel by two monomer diodes；Second diode D14 is by 2 poles of monomer two
Pipe is formed in parallel.Parallel connection in the same direction refers to that positive pole and positive pole connect, and negative pole connects with negative pole.
Beneficial effect：
Dual input power supply circuit of the present utility model for portable power source, using 2 power inputs, one connects automobile
Battery (such as connects battery) by cigar lighter socket, and one connects dry cell batteries, is particularly suitable for vehicle-mounted use, and wireless communication electricity can be
The energy-storage module charging of portable power source.
It is in addition, low (because schottky barrier height is less than using BAT54CW type Schottky-barrier diodes, forward voltage drop
PN junction barrier height, therefore its forward conduction threshold voltage and forward voltage drop are all lower than PN junction diode (about low 0.2V)), due to
SBD (Schottky-barrier diode) is a kind of majority carrier conductive devices, in the absence of minority carrier lifetime and Reverse recovery
Problem.SBD reverse recovery time is the charge and discharge time of Schottky barrier electric capacity, is totally different from PN junction diode
Reverse recovery time.Because SBD QRR is considerably less, therefore switching speed is very fast, and switching loss is also especially small, especially
It is suitable for frequency applications.SBD structure and feature makes it suitable for being used as high-frequency rectification in low pressure, High-current output occasion.
Further, the ME6119A33PG types voltage-stablizer that voltage-stablizer uses is the adjustable master-hand's LDO voltage stabilizer of input voltage
(400mAAdjustable Voltage High Speed LDO Regulators), output voltage is accurate, input voltage range
For 2.5~18V；Can be not only that energy-storage module charges by booster circuit, moreover it is possible to as benchmark using being particularly suitable for here
Voltage is used in temperature sensing circuit.
Therefore, the input voltage of this compatible wide scope of dual input power supply circuit energy for portable power source, using wide
It is general, and be chargeable, circuit working stability without alternating current, it is practical.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the dual input power supply circuit for portable power source；
Fig. 2 is the schematic diagram of the accumulator of portable power source.
Embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to practical new herein
Type, which is done, more comprehensively, meticulously to be described, but the scope of protection of the utility model is not limited to specific embodiment.
Unless otherwise defined, all technical terms used hereinafter are generally understood that implication phase with those skilled in the art
Together.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to and limits this practicality newly
The protection domain of type.
Embodiment 1：
Fig. 1, a kind of dual input power supply circuit for portable power source, including the first power input (VBOUT+), second
Power input (VCC-BAT), the first diode D13, the second diode D14, voltage-stablizer and power output end (5V-VDD)；
First power input is used to connect with the positive pole of automobile batteries；
Second source input is used for the positive pole for connecing dry cell batteries；Dry cell batteries include three section dry cells, often save 1.5V, defeated
Go out for 4.5V；
First power input connects the input of voltage-stablizer through the first diode D13；Second source input is through the two or two
Pole pipe D14 connects the input of voltage-stablizer；
The output end of voltage-stablizer is power output end；The output end of voltage-stablizer exports 3.3~5V DC voltage.
Described the first diode D13, the second diode D14 is BAT54CW type Schottky-barrier diodes.
Described voltage-stablizer is ME6119A33PG type voltage-stablizers.
The input of voltage-stablizer is provided with electrochemical capacitor (C40)；The input and output of voltage-stablizer are also respectively connected to one
Non-electrolytic capacitor (C37 and C51)；The capacitance of described electrochemical capacitor is 47uF, and the capacitance of described non-electrolytic capacitor is
0.1uF。
Such as Fig. 2, the energy-storage module of portable power source includes 5 super capacitors (C1, C2, C3, C4 and C7) of series connection；Each is super
The capacitance of level electric capacity is 350F；The energy-storage module using lithium ion battery is totally different from, it is safe using super capacitor,
The risk do not exploded, and service life is grown；The effect of 4 sockets (J45, J11, J11, J18) in circuit is that overstriking is led
Electrical circuit；Because the typical case of the power supply is to provide automobile starting electric current, electric current is big, and overstriking galvanic circle can effectively be protected
Device and circuit board.Each super capacitor is parallel with a voltage stabilizing branch road, and voltage stabilizing branch routing resistance and voltage-stabiliser tube are in series,
The resistance of resistance is 1 ohm, the model MMSZS223BT1 of voltage-stabiliser tube.
Claims (10)
1. a kind of dual input power supply circuit for portable power source, it is characterised in that including the first power input, second source
Input, the first diode D13, the second diode D14, voltage-stablizer and power output end；
First power input is used to connect with the positive pole of automobile batteries；
Second source input is used for the positive pole for connecing dry cell batteries；
First power input connects the input of voltage-stablizer through the first diode D13；Second source input is through the second diode
D14 connects the input of voltage-stablizer；
The output end of voltage-stablizer is power output end；The output end of voltage-stablizer exports 3.3~5V DC voltage.
2. the dual input power supply circuit according to claim 1 for portable power source, it is characterised in that described the one or two
Pole pipe D13, the second diode D14 are BAT54CW type Schottky-barrier diodes.
3. the dual input power supply circuit according to claim 1 for portable power source, it is characterised in that described voltage-stablizer
For ME6119A33PG type voltage-stablizers.
4. the dual input power supply circuit for portable power source according to claim any one of 1-3, it is characterised in that voltage stabilizing
The input of device is provided with electrochemical capacitor.
5. the dual input power supply circuit according to claim 4 for portable power source, it is characterised in that the input of voltage-stablizer
End and output are also respectively connected to a non-electrolytic capacitor.
6. the dual input power supply circuit according to claim 5 for portable power source, it is characterised in that described electrolysis electricity
The capacitance of appearance is 47uF.
7. the dual input power supply circuit according to claim 6 for portable power source, it is characterised in that described non-electrolytic
The capacitance of electric capacity is 0.1uF.
8. the dual input power supply circuit according to claim 1 for portable power source, it is characterised in that the second input passes through
Resistance R23 is connected with the second diode D14 positive pole.
9. the dual input power supply circuit according to claim 8 for portable power source, it is characterised in that resistance R23 resistance
It is worth for 10 ohm.
10. the dual input power supply circuit according to claim 9 for portable power source, it is characterised in that the first diode
D13 is formed in parallel by two monomer diodes；Second diode D14 is formed in parallel by 2 monomer diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083180.3U CN206790132U (en) | 2017-01-22 | 2017-01-22 | A kind of dual input power supply circuit for portable power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083180.3U CN206790132U (en) | 2017-01-22 | 2017-01-22 | A kind of dual input power supply circuit for portable power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790132U true CN206790132U (en) | 2017-12-22 |
Family
ID=60704861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720083180.3U Active CN206790132U (en) | 2017-01-22 | 2017-01-22 | A kind of dual input power supply circuit for portable power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206790132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019133956A1 (en) * | 2017-12-30 | 2019-07-04 | Texas Instruments Incorporated | Capacitor balanced driver circuit for dual input charger |
-
2017
- 2017-01-22 CN CN201720083180.3U patent/CN206790132U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019133956A1 (en) * | 2017-12-30 | 2019-07-04 | Texas Instruments Incorporated | Capacitor balanced driver circuit for dual input charger |
| US10491023B2 (en) | 2017-12-30 | 2019-11-26 | Texas Instruments Incorporated | Capacitor balanced driver circuit for dual input charger |
| US10778029B2 (en) | 2017-12-30 | 2020-09-15 | Texas Instruments Incorporated | Capacitor balanced driver circuit for dual input charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202651863U (en) | Charger and charging system | |
| CN103269116A (en) | Bidirectional Buck transformer-based super capacitor and storage battery hybrid energy storage photovoltaic system | |
| CN204465104U (en) | A kind of portable set charging power source circuit | |
| CN102629825A (en) | Circuit structure of realizing synchronous buck-type charging and boost-type power supply by using single inductor | |
| CN206790132U (en) | A kind of dual input power supply circuit for portable power source | |
| CN105322576A (en) | Mobile power supply with rapid charging function | |
| CN102934883A (en) | Portable solar charging energy storage bag | |
| CN207010335U (en) | A kind of solar energy low-light TRT | |
| CN206440809U (en) | A kind of detection circuit of startup power supply | |
| CN205210816U (en) | Server reserve cell | |
| CN100508329C (en) | Portable charger for handset | |
| CN206442148U (en) | A kind of accumulator of the portable power source based on super capacitor | |
| CN103779839B (en) | A kind of automatic shutoff start-up circuit adopting rechargeable battery to power | |
| CN206442559U (en) | A kind of LED drive circuit | |
| CN201623513U (en) | Electrical energy distributor circuit and mobile terminal | |
| CN204947658U (en) | Unmanned plane quick charge device | |
| CN205921434U (en) | Dual supply direct current stabilizer | |
| CN103427476A (en) | Energy management system based on wireless sensor node | |
| CN205231830U (en) | Series battery's photovoltaic charging circuit | |
| CN204732944U (en) | A kind of charging circuit | |
| CN203722214U (en) | Self-switching-off starting circuit powered by rechargeable battery | |
| CN204481503U (en) | A kind of level lithium battery charging management circuit | |
| CN105406578B (en) | A kind of photovoltaic charged circuit of series battery | |
| CN203365536U (en) | Voltage acquisition circuit of low-energy-consumption lithium ion battery | |
| CN201117760Y (en) | Portable mobile phone charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |