CN103326448B - Power management switching device shifter - Google Patents
Power management switching device shifter Download PDFInfo
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- CN103326448B CN103326448B CN201310293824.8A CN201310293824A CN103326448B CN 103326448 B CN103326448 B CN 103326448B CN 201310293824 A CN201310293824 A CN 201310293824A CN 103326448 B CN103326448 B CN 103326448B
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Abstract
The invention provides a kind of power management switching device shifter, comprise two groups of 12V storage batterys, two groups of 12V charging systems, control circuit and remote ports, described two groups of 12V storage batterys series connection, by centre tap, realizes 12V and 24V two kinds of power supplys; 12V charging system described in described two groups of 12V accumulator terminal sub-connections respectively; Described control circuit comprises two groups, the front and back bistable circuit be made up of two 555 integrated circuits; Described power management switching device shifter also comprises two transistors, and described two transistors are connected to the output interface of rear end bistable circuit; Described power management switching device shifter also comprises two relays, and described two relays are by described two transistor driving; Described remote port comprises two triodes.The invention enables power supply freely to switch and Long-distance Control, and stable power supply output and the free maintenance management of storage battery can be provided.
Description
Technical field
The present invention relates to automation control area, particularly relate to a kind of power management switching device shifter.
Background technology
Engine is tested, and needing provides different magnitudes of voltage according to the different ECU to engine of the configuration of engine, starting ignition and preheating etc., therefore needs the switching that can realize power supply in same power-supply system, to provide different power supply supports.Traditional management system is Switching Power Supply management mode, or adopts single supply (24V) to charge after two storage battery series connection.Owing to adopting Switching Power Supply in front a kind of pattern, be easy to introduce interference in systems in which, easily break down when short time big current (300-400A) simultaneously; Rear a kind of pattern two 12V batteries, but single only with single 24V Charge Management, and use the battery of 12V easily can occur early stage life time decay, two batteries occur uneven, cause storage battery to scrap very soon.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of power management switching device shifter, and power supply can freely be switched and Long-distance Control, and can provide stable power supply output and the free maintenance management of storage battery.
For achieving the above object, power management switching device shifter of the present invention, comprises two groups of 12V storage batterys, two groups of 12V charging systems, control circuit and remote ports, and described two groups of 12V storage batterys series connection, by centre tap, realizes 12V and 24V two kinds of power supplys; 12V charging system described in described two groups of 12V accumulator terminal sub-connections respectively; Described control circuit comprises the bistable circuit be made up of two 555 integrated circuits; Described power management switching device shifter also comprises two transistors, and described two transistors are connected to the rear end of described bistable circuit; Described power management switching device shifter also comprises two relays, and described two relays are by described two transistor driving; Described remote port comprises two triodes.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1, two groups of 12V storage battery series connection, pass through centre tap, 12V and 24V two kinds of power supplys can be realized, meet the needs of different tests power supply, simultaneously respectively at the charging system of two groups of 12V accumulator terminal sub-connection 12V, separately Charge Management is carried out to two 12V battery pack, at any time, no matter be that the 12V battery pack of lower end or the 12V battery pack of upper end can be in floating charge state.When the 12V battery pack of lower end is in 12V power supply state, upper end 12V battery pack does not consume, and the consumption of lower end 12V battery pack just completes charging by the 12V charging system of lower end fills; When employing 24V power supply state, the 12V battery pack of lower end and upper end is all in consumption state, and two battery pack complete charging by respective charging system respectively.Adopt the battery management of this form, in 12V and 24V electrical source exchange uses frequently, the early stage decay of lower end 12V battery pack can be avoided.
The test of this control circuit realizes the switching in 12V and 24V storage battery power supply system.Front end forms bistable circuit by two 555 integrated circuits, when after one of them circuit triggers, can trigger another one circuit, can be resetted by button to two circuit simultaneously.When powering on, due to 555 resetting pin low levels, two circuit are made all to enter the low level state of output.After one of them makes to export high level because button triggers, another one can be triggered and enter output low level state, pass through reset button, two circuit can be made all to enter output low level state, two output low levels can be realized thus with one of them for high another is low, but there will not be two to be high state simultaneously, two-way can be realized thus and close and only open a road.Two, rear end, 555 integrated circuits are connected with the output of front end respectively, and when high level because needs are to capacitor charging, charged electrical resistance is higher, and therefore high level rises comparatively slow, and output upset can postpone, and is about 3 seconds by parameter delay time in Fig. 1; And capacitor discharge loop resistance is less when low level, can repid discharge, thus overturn fast.Realize quick closedown thus, delayed start-up.555 rear ends connect transistor Q1 and Q2, transistor driving relay, thus switch power supply.
Two long-range this locality control to select to be controlled by two triode Q3 and Q4, when remote port does not connect or be input as low, triode Q4 ends, triode Q3 conducting, termination low level under control button, button can be used, the triode Q4 conducting when remote port input high level, triode Q3 ends, termination high level under control button, button is unavailable, thus the local control of shielding.
Claims (1)
1. a power management switching device shifter, is characterized in that, comprises two groups of 12V storage batterys, two groups of 12V charging systems, control circuit and remote ports, and described two groups of 12V storage batterys series connection, by centre tap, realizes 12V and 24V two kinds of power supplys; 12V charging system described in described two groups of 12V accumulator terminal sub-connections respectively, carry out Charge Management separately to two groups of 12V storage batterys, two groups of 12V storage batterys complete charging by respective charging system respectively; Described control circuit comprises two groups, the front and back bistable circuit be made up of two 555 integrated circuits, specifically comprises bistable circuit that front end is made up of two 555 integrated circuits and the bistable circuit that rear end is made up of two 555 integrated circuits; Described power management switching device shifter also comprises two transistor Q1 and Q2, and described two transistor Q1 and Q2 are connected to the output interface of rear end bistable circuit; Described power management switching device shifter also comprises two relays, and described two relays are driven the switching carried out 12V and 24V and export by described two transistor Q1 and Q2; Described remote port comprises two triode Q3 and Q4, and when remote port does not connect or be input as low, triode Q4 ends, triode Q3 conducting, termination low level under control button S1, S2 and S3, and button S1, S2 and S3 can use; The triode Q4 conducting when remote port input high level, triode Q3 ends, termination high level under control button S1, S2 and S3, and button S1, S2 and S3 are unavailable, thus the local control of shielding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293824.8A CN103326448B (en) | 2013-07-12 | 2013-07-12 | Power management switching device shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293824.8A CN103326448B (en) | 2013-07-12 | 2013-07-12 | Power management switching device shifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103326448A CN103326448A (en) | 2013-09-25 |
| CN103326448B true CN103326448B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310293824.8A Active CN103326448B (en) | 2013-07-12 | 2013-07-12 | Power management switching device shifter |
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| CN (1) | CN103326448B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769174B (en) * | 2020-12-28 | 2023-02-17 | 山东鲁软数字科技有限公司智慧能源分公司 | Auxiliary power supply for off-board charging motor and method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5528122A (en) * | 1994-11-29 | 1996-06-18 | Ventron Corporation | Battery voltage equalizer circuit |
| CN101350614A (en) * | 2007-07-17 | 2009-01-21 | 鸿富锦精密工业（深圳）有限公司 | Control circuit for electric timing switch |
| CN203398826U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Switching device for power management |
-
2013
- 2013-07-12 CN CN201310293824.8A patent/CN103326448B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5528122A (en) * | 1994-11-29 | 1996-06-18 | Ventron Corporation | Battery voltage equalizer circuit |
| CN101350614A (en) * | 2007-07-17 | 2009-01-21 | 鸿富锦精密工业（深圳）有限公司 | Control circuit for electric timing switch |
| CN203398826U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Switching device for power management |
Non-Patent Citations (2)
| Title |
|---|
| 555定时器在控制电路中的应用;钟海丽;《长沙电力学院学报（自然科学版）》;20030531;第18卷(第2期);第61页-第63页 * |
| 柴油轻型客车电源启动电路探讨;周学元;《汽车电器》;19921031(第5期);第10页-第12页 * |
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| CN103326448A (en) | 2013-09-25 |
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