CN102891593A - Miniature universal power supply - Google Patents
Miniature universal power supply Download PDFInfo
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- CN102891593A CN102891593A CN2012104291420A CN201210429142A CN102891593A CN 102891593 A CN102891593 A CN 102891593A CN 2012104291420 A CN2012104291420 A CN 2012104291420A CN 201210429142 A CN201210429142 A CN 201210429142A CN 102891593 A CN102891593 A CN 102891593A
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Abstract
The invention provides a miniature universal power supply, which comprises a battery pack, a five-core plug, a five-core socket, a feedback resistor R3 and a switch voltage-stabilizing circuit, wherein the switch voltage-stabilizing circuit comprises a switch voltage regulator; the anode of the battery pack is connected with a first pin of the five-core socket; a second pin of the socket is connected with an input end of the switch voltage regulator; a third pin of the socket is connected with a feedback pin FB of the switch voltage regulator; a fourth pin and a fifth pin of the socket are respectively connected with the output end and the grounding end of the switch voltage regulator; a first pin and a second pin of the five-core plug are in short circuit; the feedback resistor R3 is connected with a third pin of the socket; the other end of the feedback resistor R3 is connected with a fifth pin of the socket and serves as an output cathode of the power supply; and a fourth pin of the socket serves as an output anode of the power supply. The miniature universal power supply can obtain different voltage value outputs and can be respectively applicable to equipment with different power supply voltage values, and the electric equipment can be effectively protected.
Description
Technical field
The present invention relates to a kind of multipurpose power supply, can satisfy respectively the demand of many different power voltage and power adaptation jaws equipment, belong to mobile low-tension supply power supply technique field.
Background technology
Because needing many power consumption equipments, field work is furnished with external connection battery, often the equipment of variety classes, different model needs different voltage, different battery adaptable interfaces is arranged, its external connection battery can not be general, such as thermal infrared imager, low-light level night vision device, microwave distance detector, range finder using laser etc., this brings a lot of inconvenience for field work personnel, particularly troop operation, the training of using simultaneously plurality of devices, uses as gun to play disunity.
Summary of the invention
Can not be applicable to the problem of different voltages and adaptable interface equipment for existing field work battery, the invention provides a kind of micro universal power supply that can adjust supply power voltage and applicable various adaptable interfaces.
Micro universal battery of the present invention, by the following technical solutions:
This micro universal power supply, comprise battery pack, five core plugs, five core sockets, feedback resistance R3 and switch voltage-stabilizing circuit, comprise regulator in the switch voltage-stabilizing circuit, the first contact pin of five core sockets links to each other with the positive pole of battery pack, the second contact pin of five core sockets links to each other with the input of regulator, the 3rd contact pin of five core sockets links to each other with the feedback pin (FB) of regulator, the 4th contact pin of five core sockets links to each other with the output of switch voltage-stabilizing circuit (anode of capacitor C 2), and the 5th contact pin of five core sockets links to each other with the regulator earth terminal; The 1st pin of five core plugs and the 2nd pin short circuit, the end of feedback resistance R3 links to each other with the 3rd pin of five core plugs, and the other end links to each other with 5 pin of five core plugs and as the output negative pole of power supply, the 4th pin of five core plugs is the output cathode of power supply.
Switch voltage-stabilizing circuit is by regulator (being integrated circuit LM2596), resistance R 1, resistance R 2, capacitor C FF, capacitor C 1, capacitor C 2, inductance L 1 and voltage stabilizing didoe D1 form, one end of resistance R 1 links to each other with the feedback end of regulator, the other end links to each other with the earth terminal (GND) of regulator, resistance R 2 is in parallel with capacitor C FF, two ends link to each other with the feedback end (FB) of regulator and the anode of C2 respectively after in parallel, the anode of capacitor C 1 links to each other with earth terminal (GND) with the input (IN) of regulator respectively with negative terminal, the output (OUT) of one end of inductance L 1 and the negative terminal of voltage stabilizing didoe D1 and regulator links together, the other end of inductance links to each other with the anode of C2, the negative terminal of C2, the anode of voltage stabilizing didoe D1, the earth terminal (GND) of the switch terminals of regulator (NO/OFF) and regulator all links to each other with the negative pole of battery.
Above-mentioned power supply, the ratio that namely changes the sample resistance (resistance R 1 and resistance R 2 are as sample resistance) in the regulator by the resistance that changes the feedback resistance R3 in five core plugs changes the voltage output value of power supply, two output pins of five core plugs connect by the attaching plug on two core cable and the different power consumption equipments, five core plugs and five core sockets are plugged in together during use, can be embodied as the requirement of the power consumption equipment power supply of different input voltage requirements.
As long as will containing five core plugs of different resistance resistance, the present invention is plugged on the five core sockets; just can obtain different magnitude of voltage output; can be applicable to respectively the different equipment of supply power voltage value; the low output voltage value of power supply only can be fallen when plug and socket loose contact (namely changing the loose contact of voltage stabilizing value loading resistor); and when changing output voltage; magnitude of voltage always changes from small to big, thereby can effectively protect power consumption equipment.
Description of drawings
Accompanying drawing is the circuit theory diagrams of universal miniature power supply of the present invention.
Embodiment
As shown in drawings, this micro universal power supply comprises battery pack, five core plugs, five core sockets, feedback resistance R3 and switch voltage-stabilizing circuit, and battery pack and switch voltage-stabilizing circuit are installed in the same housing, and five core plugs and five core sockets are installed on the housing outer surface.During use, five core plugs and five core sockets are plugged in together.
Switch voltage-stabilizing circuit is that switch is voltage regulator by integrated circuit LM2596(), resistance R 1, resistance R 2, capacitor C FF, capacitor C 1, capacitor C 2, inductance L 1 and voltage stabilizing didoe D1 form, resistance R 1 and resistance R 2 are as sample resistance.One end of resistance R 1 links to each other with the feedback end (FB) of LM2596, the other end links to each other with the earth terminal (GND) of LM2596, resistance R 2 is in parallel with capacitor C FF, two ends link to each other with the feedback end (FB) of LM2596 and the anode of C2 respectively after in parallel, the anode of capacitor C 1 links to each other with earth terminal (GND) with the input (IN) of LM2596 respectively with negative terminal, the output (OUT) of one end of inductance L 1 and the negative terminal of voltage stabilizing didoe D1 and LM2596 links together, the other end of inductance links to each other with the anode of C2, the negative terminal of C2, the anode of voltage stabilizing didoe D1, the switch terminals of LM2596 (NO/OFF) all links to each other with the negative pole of battery with earth terminal (GND).
The positive pole of battery pack links to each other with the first contact pin of five core sockets, the second contact pin of socket links to each other with the input of integrated circuit LM2596, the 3rd contact pin of socket links to each other with the feedback end (FB) of integrated circuit LM2596, and the 4th contact pin of socket links to each other with the anode of capacitor C 2 and the earth terminal of integrated circuit LM2596 respectively with the 5th contact pin.
The 1st pin of five core plugs and the 2nd pin short circuit, an end of resistance R 3 links to each other with the 3rd pin of plug, and the other end links to each other with the 5th pin of plug and as the negative pole of power supply output, the 4th pin of plug is as the output cathode of power supply.
When five core plugs and five core receptacle accepts, jack per line links to each other, and namely the first contact pin of five core sockets links to each other with the 1st pin of five core plugs, and the second contact pin links to each other with the 2nd pin of five core plugs, and is identical according to this.
Namely change the voltage output value that sample resistance R1 among the integrated circuit LM2596 and R2 ratio change power supply by the resistance that changes the feedback resistance R3 in five core plugs, as long as five core plugs are plugged on the socket, just can obtain different magnitude of voltage output, can be applicable to respectively the different equipment of supply power voltage value.
When five core plugs and five core sockets separated, battery pack and switch voltage-stabilizing circuit disconnected, not power consumption.When five core plugs linked to each other with five core sockets, battery pack was powered to switch voltage-stabilizing circuit, its voltage stabilizing output valve V
OutThe resistance that depends on resistance R 1, resistance R 2 and resistance R 3, when resistance R 3 open circuits or plug separate with socket, V
Out=V
REF(1+R2/R1), V in the formula
Out=1.25V.Instructions for use according to integrated circuit LM2596, generally choose R1=1K Ω, R2 replaces adjusting resistance with a potentiometer and obtains different voltage stabilizing output valves, this occupation mode can be brought many inconvenience in use, at first want a multiplex voltmeter to determine output voltage how much, secondly if for the lower equipment of utilization voltage the output voltage of power supply adjustment will be burnt electrical appliance too greatly, particularly very inconvenience of this adjustment during troop operation.Can obtain fixed value voltage output with the mode of changing fixed value resistance, the change of R2 resistance is nothing but to disconnect replacing or pass through parallel resistance, because the larger voltage stabilizing output valve of R2 resistance is larger, can cause when loose contact appears in the R2 conversion like this that the voltage stabilizing output valve becomes large, and output valve is descending conversion during voltage transformation, and this phenomenon do not wish to see, hope be that R2 output voltage when loose contact will reduce, can not burn out electrical appliance like this, the voltage stabilizing output valve is to change from small to big during replacing.
The resistance of adjusting R1 can reach expectation, R1=R2V
REF/ (V
Out-V
REF), the span of R1 is 240 Ω-1.5K Ω, the adjustment of R1 realizes by R3 resistance in parallel; At first calculate the ratio of R1 and R2 according to desired different output voltage values, then, select the resistance of one group of R1 and R2 by the minimum output voltage value, calculate at last the numerical value of the R3 in parallel with R1 by other output voltage values, and require R1 and the R1 numerical value in parallel with R3 between 240 Ω-1.5K Ω, whether the numerical value of checking R3 has commercial nominal value or close value now, again chooses greatly the resistance of R1 and R2 such as difference.
When R2=12K Ω, R1=1.5K Ω, can obtain respectively being about the output voltage of 3V, 6V, 7.2V, 9V and 13V when getting respectively R3 and be 8.2K Ω, 5.1K Ω, 3.6K Ω, 2.4K Ω and 1.5K Ω.
The output of five core plugs is connected with the two core cable line, be connected with the attaching plug of power consumption equipment by this two core cable line, so just realized to be the power consumption equipment power supply with the different electrical power plug, only needed the two core cable line just can realize that the equipment of different needs for electricity shares a kind of power supply.
When in use changing five core plugs, output voltage values is ascending, only can reduce and can not increase if there is resistance R 3 loose contact output voltages.And as long as the power consumption equipment power line can be plugged, supply power voltage just can not be wrong, and replacing easy to use is rapid.
Claims (2)
1. micro universal power supply, comprise battery pack, five core plugs, five core sockets, feedback resistance R3 and switch voltage-stabilizing circuit, it is characterized in that, comprise regulator in the switch voltage-stabilizing circuit, the first contact pin of five core sockets links to each other with the positive pole of battery pack, the second contact pin of five core sockets links to each other with the input of regulator, the 3rd contact pin of five core sockets links to each other with the feedback pin of regulator, the 4th contact pin of five core sockets links to each other with the output of switch voltage-stabilizing circuit, and the 5th contact pin of five core sockets links to each other with the regulator earth terminal; The 1st pin of five core plugs and the 2nd pin short circuit, the end of feedback resistance R3 links to each other with the 3rd pin of five core plugs, and the other end links to each other with 5 pin of five core plugs and as the output negative pole of power supply, the 4th pin of five core plugs is the output cathode of power supply.
2. micro universal power supply according to claim 1, it is characterized in that, described switch voltage-stabilizing circuit is by regulator, resistance R 1, resistance R 2, capacitor C FF, capacitor C 1, capacitor C 2, inductance L 1 and voltage stabilizing didoe D1 form, one end of resistance R 1 links to each other with the feedback end of regulator, the other end links to each other with the earth terminal of regulator, resistance R 2 is in parallel with capacitor C FF, two ends link to each other with the feedback end of regulator and the anode of C2 respectively after in parallel, the anode of capacitor C 1 links to each other with earth terminal with the input of regulator respectively with negative terminal, one end of inductance L 1 and the negative terminal of voltage stabilizing didoe D1 and the output of regulator link together, the other end of inductance links to each other with the anode of C2, the negative terminal of C2, the anode of voltage stabilizing didoe D1, the switch terminals of regulator all links to each other with the negative pole of battery with the earth terminal of regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104291420A CN102891593A (en) | 2012-11-01 | 2012-11-01 | Miniature universal power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104291420A CN102891593A (en) | 2012-11-01 | 2012-11-01 | Miniature universal power supply |
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| Publication Number | Publication Date |
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| CN102891593A true CN102891593A (en) | 2013-01-23 |
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ID=47534996
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104291420A Pending CN102891593A (en) | 2012-11-01 | 2012-11-01 | Miniature universal power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467421A (en) * | 2014-12-12 | 2015-03-25 | 柳州铁道职业技术学院 | Switching power source based on switch voltage stabilizing type integrated circuit |
| CN108227890A (en) * | 2018-02-06 | 2018-06-29 | 福建捷联电子有限公司 | It is a kind of realize display do not use in the case of internal cell zero consume method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237188A (en) * | 2007-01-08 | 2008-08-06 | 茂新有限公司 | Universal power adapter/converter |
| CN101340139A (en) * | 2007-07-03 | 2009-01-07 | 鸿富锦精密工业（深圳）有限公司 | Multi-output AC power source adapter |
| CN202906738U (en) * | 2012-11-01 | 2013-04-24 | 山东大学 | Miniature universal power supply |
-
2012
- 2012-11-01 CN CN2012104291420A patent/CN102891593A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237188A (en) * | 2007-01-08 | 2008-08-06 | 茂新有限公司 | Universal power adapter/converter |
| CN101340139A (en) * | 2007-07-03 | 2009-01-07 | 鸿富锦精密工业（深圳）有限公司 | Multi-output AC power source adapter |
| CN202906738U (en) * | 2012-11-01 | 2013-04-24 | 山东大学 | Miniature universal power supply |
Non-Patent Citations (1)
| Title |
|---|
| HTC CORPORATION: "《3.0A, 150Khz, Step-Down Switching Regulator LM2596》", 31 October 2004 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467421A (en) * | 2014-12-12 | 2015-03-25 | 柳州铁道职业技术学院 | Switching power source based on switch voltage stabilizing type integrated circuit |
| CN108227890A (en) * | 2018-02-06 | 2018-06-29 | 福建捷联电子有限公司 | It is a kind of realize display do not use in the case of internal cell zero consume method |
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Application publication date: 20130123 |