CN202817889U - Vehicle-borne main/standby power supply switching circuit - Google Patents
Vehicle-borne main/standby power supply switching circuit Download PDFInfo
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- CN202817889U CN202817889U CN 201220474861 CN201220474861U CN202817889U CN 202817889 U CN202817889 U CN 202817889U CN 201220474861 CN201220474861 CN 201220474861 CN 201220474861 U CN201220474861 U CN 201220474861U CN 202817889 U CN202817889 U CN 202817889U
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- way conduction
- switch
- switch module
- power supply
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Abstract
The utility model belongs to the field of circuit and provides a vehicle-borne main/standby power supply switching circuit. The circuit is connected with a main power switch of a vehicle; and the circuit comprises a main power supply, a standby power supply and a filtering and voltage-stabilizing module and further comprises a power management module, a first one-way conduction switch module and a second one-way conduction switch module. By adopting the functional properties of these function modules, the utility model provides a solution for the problem that a traditional main/standby power supply switching circuit can only satisfy one main power supply voltage, the voltage drop of a diode in the traditional vehicle-borne main/standby power supply switching circuit is larger, a dynamic resistor can be easily affected by temperature, the voltage is output after passing through the diode, and thus normal power supply requirements of vehicles cannot be satisfied.
Description
Technical field
The utility model belongs to circuit field, relates in particular to a kind of vehicle-mounted the switch between alternating current and standby battery circuit.
Background technology
The main electricity of mobile unit is to be provided by automobile self storage battery, mainly contains at present 3 kinds of voltages such as 12V, 24V and 36V, when main power source unusual (main electricity is under voltage pattern or disconnection), need to be powered by standby electricity, and standby electricity generally be extra storage battery.
In an automobile, traditional the switch between alternating current and standby battery circuit can only satisfy a kind of main power voltage, it is just pretty troublesome when main power source has been broken the needs replacing, must look for the power supply of identical voltage swing as main power source, and in the process of carrying out the switch between alternating current and standby battery, adopt diode to realize, but diode has the one-way conduction pressure drop, and its dynamic electric resistor temperature influence is larger, also can be influential through the output voltage behind the diode, make the brownout through diode output, can not satisfy the normal power demands of automobile, make the power consumption equipment cisco unity malfunction of automobile, and diode has increased the power consumption of equipment, and the electric weight of battery is run out of soon.
The utility model content
The purpose of this utility model is to provide a kind of vehicle-mounted the switch between alternating current and standby battery circuit, be intended to solve traditional the switch between alternating current and standby battery circuit and can only satisfy a kind of main power voltage, and traditional vehicle-mounted the switch between alternating current and standby battery circuit diode tube pressuring drop is larger, and the easy temperature influence of resistance, voltage are exported the problem that can not satisfy the normal power demands of automobile behind diode.
In order to address the above problem, the utility model is achieved in that a kind of vehicle-mounted the switch between alternating current and standby battery circuit, is connected with the automobile primary mains switch, comprises main power source, stand-by power supply and filtering voltage regulation module, described filtering voltage regulation module is connected with described main power source, and described circuit also comprises:
Be connected the power management module of output specific voltage value with described filtering voltage regulation module;
Be connected the first one-way conduction switch module of control voltage turn-on or cut-off with described power management module; And
Be connected the second one-way conduction switch module of control voltage turn-on or cut-off with described stand-by power supply;
The output of the output of described the first one-way conduction switch module and described the second one-way conduction switch module is connected to described automobile primary mains switch altogether.
Further, described the first one-way conduction switch module comprises one-way conduction chip U1, resistance R 1 and capacitor C 1;
The described power management module of input termination of described one-way conduction chip U1, the second end of the described resistance R 1 of adjusting termination of described one-way conduction chip U1 and the first end of described capacitor C 1, the second end ground connection of described capacitor C 1, the first end of the described resistance R 1 of output termination of described one-way conduction chip U1, the first end of described resistance R 1 are the described automobile primary mains switch of the output termination of described the first one-way conduction switch module.
Further, described the second one-way conduction switch module comprises one-way conduction chip U2, resistance R 2 and capacitor C 2;
The described stand-by power supply of input termination of described one-way conduction chip U2, the second end of the described resistance R 1 of adjusting termination of described one-way conduction chip U2 and the first end of described capacitor C 2, the second end ground connection of described capacitor C 2, the first end of the described resistance R 2 of output termination of described one-way conduction chip U2, the first end of described resistance R 2 are the described automobile primary mains switch of the output termination of described the second one-way conduction switch module.
Further, described the first one-way conduction switch module comprises one-way conduction chip U1;
The described power management module of input termination of described one-way conduction chip U1, the output of described one-way conduction chip U1 are the described automobile primary mains switch of the output termination of described the first one-way conduction switch module.
Further, described the second one-way conduction switch module comprises one-way conduction chip U2;
The described stand-by power supply of input termination of described one-way conduction chip U2, the output of described one-way conduction chip U2 are the described automobile primary mains switch of the output termination of described the second one-way conduction switch module.
In the utility model, by power management module, export after the output voltage of main power source is set as particular value, make the identical voltage of different main power sources outputs, satisfy the different main power voltage needs of automobile; Adopt simultaneously the one-way conduction switch module, according to the one-way conduction principle, when the voltage of main power voltage greater than stand-by power supply, power management module output one specific magnitude of voltage, the cut-off of the second one-way conduction switch module, the first one-way conduction switch module conducting is powered to the automobile primary mains switch by main power source; When main power voltage less than backup power source voltage, power management module is not worked, output voltage not, the second one-way conduction switch module conducting, the cut-off of the first one-way conduction switch module, powered to the automobile primary mains switch by stand-by power supply, and the first one-way conduction switch module and the second one-way conduction switch module adopt respectively the one-way conduction chip, there are not tube voltage drop and the high loss of conventional diode, solve traditional the switch between alternating current and standby battery circuit and can only satisfy a kind of main power voltage, and diode tube pressuring drop is larger in traditional the switch between alternating current and standby battery circuit, and the easy temperature influence of resistance, voltage are exported the problem that can not satisfy the normal power demands of automobile behind diode.
Description of drawings
Fig. 1 is the construction module figure of the vehicle-mounted the switch between alternating current and standby battery circuit that provides of the utility model embodiment;
Fig. 2 is the first one-way conduction switch module of providing of the utility model the first embodiment and the circuit structure diagram of the second one-way conduction switch module;
Fig. 3 is the first one-way conduction switch module of providing of the utility model the second embodiment and the circuit structure diagram of the second one-way conduction switch module.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Below in conjunction with specific embodiment specific implementation of the present utility model is described in detail:
As shown in Figure 1, a kind of vehicle-mounted the switch between alternating current and standby battery circuit is connected with automobile primary mains switch 300, comprises main power source 101, stand-by power supply 103 and filtering voltage regulation module 102, filtering voltage regulation module 102 is connected with main power source 101, and vehicle-mounted the switch between alternating current and standby battery circuit also comprises:
Be connected the power management module 201 of output specific voltage value with filtering voltage regulation module 102;
Be connected the first one-way conduction switch module 202 of control voltage turn-on or cut-off with power management module 201; And
Be connected the second one-way conduction switch module 203 of control voltage turn-on or cut-off with stand-by power supply 103;
The output of the output of the first one-way conduction switch module 202 and the second one-way conduction switch module 203 is connected to automobile primary mains switch 300 altogether.
As the utility model one embodiment, when main power source 101 during greater than stand-by power supply 103, the voltage of main power source 101 outputs is exported to power management module 201 after filtering voltage regulation module 102, power management module 201 is according to the operating voltage of automobile needs, export a specific magnitude of voltage, be the normal operational voltage value of automobile, 202 conductings of the first one-way conduction switch module, 203 cut-offs of the second one-way conduction switch module; When main power source 101 voltages during less than the voltage of stand-by power supply 103, power management module 201 is not worked, output voltage not, and 202 cut-offs of the first one-way conduction switch module, 203 conductings of the second one-way conduction switch module, circuit is by stand-by power supply 103 power supplies.
Embodiment one:
Fig. 2 shows the first one-way conduction switch module that the utility model the first embodiment provides and the circuit structure of the second one-way conduction switch module, for convenience of explanation, only shows the part relevant with the utility model the first embodiment, and details are as follows:
As shown in Figure 2, the first one-way conduction switch module 202 comprises one-way conduction chip U1, resistance R 1 and capacitor C 1;
The input VIN of one-way conduction chip U1 connects power management module 201, the second end of the adjustable side VDD connecting resistance R1 of one-way conduction chip U1 and the first end of capacitor C 1, the second end ground connection of capacitor C 1, the first end of the output DRAIN connecting resistance R1 of one-way conduction chip U1, the first end of resistance R 1 are the output termination automobile primary mains switch 300 of the first one-way conduction switch module 202.
The second one-way conduction switch module 203 comprises one-way conduction chip U2, resistance R 2 and capacitor C 2;
The input VIN of one-way conduction chip U2 connects stand-by power supply 103, the second end of the adjustable side VDD connecting resistance R1 of one-way conduction chip U2 and the first end of capacitor C 2, the second end ground connection of capacitor C 2, the first end of the output DRAIN connecting resistance R2 of one-way conduction chip U2, the first end of resistance R 2 are the output termination automobile primary mains switch 300 of the second one-way conduction switch module 203.
Embodiment two:
Fig. 3 shows the first one-way conduction switch module that the utility model the second embodiment provides and the circuit structure of the second one-way conduction switch module, for convenience of explanation, only shows the part relevant with the utility model the second embodiment, and details are as follows:
As shown in Figure 3, the first one-way conduction switch module 202 comprises one-way conduction chip U1;
The input VIN of one-way conduction chip U1 connects power management module 201, and the output DRAIN of one-way conduction chip U1 is the output termination automobile primary mains switch 300 of the first one-way conduction switch module 202.
The second one-way conduction switch module 203 comprises one-way conduction chip U2;
The input VIN of one-way conduction chip U2 connects stand-by power supply 103, and the output DRAIN of one-way conduction chip U2 is the output termination automobile primary mains switch 300 of the second one-way conduction switch module 203.
In the utility model embodiment, by power management module, export after the output voltage of main power source is set as particular value, make the identical voltage of different main power sources outputs, satisfy the different main power voltage needs of automobile; Adopt simultaneously the one-way conduction switch module, according to the one-way conduction principle, when main power voltage greater than backup power source voltage, power management module output one specific magnitude of voltage, the cut-off of the second one-way conduction switch module, the first one-way conduction switch module conducting is powered to the automobile primary mains switch by main power source; When main power voltage less than backup power source voltage, power management module is not worked, output voltage not, the second one-way conduction switch module conducting, the cut-off of the first one-way conduction switch module, powered to the automobile primary mains switch by stand-by power supply, and the first one-way conduction switch module and the second one-way conduction switch module adopt respectively the one-way conduction chip, there are not tube voltage drop and the high loss of conventional diode, solve traditional the switch between alternating current and standby battery circuit and can only satisfy a kind of main power voltage, and diode tube pressuring drop is larger in traditional the switch between alternating current and standby battery circuit, and the easy temperature influence of resistance, voltage are exported the problem that can not satisfy the normal power demands of automobile behind diode.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. a vehicle-mounted the switch between alternating current and standby battery circuit is connected with the automobile primary mains switch, comprises main power source, stand-by power supply and filtering voltage regulation module, and described filtering voltage regulation module is connected with described main power source, it is characterized in that, described circuit also comprises:
Be connected the power management module of output specific voltage value with described filtering voltage regulation module;
Be connected the first one-way conduction switch module of control voltage turn-on or cut-off with described power management module; And
Be connected the second one-way conduction switch module of control voltage turn-on or cut-off with described stand-by power supply;
The output of the output of described the first one-way conduction switch module and described the second one-way conduction switch module is connected to described automobile primary mains switch altogether.
2. vehicle-mounted the switch between alternating current and standby battery circuit as claimed in claim 1 is characterized in that, described the first one-way conduction switch module comprises one-way conduction chip U1, resistance R 1 and capacitor C 1;
The described power management module of input termination of described one-way conduction chip U1, the second end of the described resistance R 1 of adjusting termination of described one-way conduction chip U1 and the first end of described capacitor C 1, the second end ground connection of described capacitor C 1, the first end of the described resistance R 1 of output termination of described one-way conduction chip U1, the first end of described resistance R 1 are the described automobile primary mains switch of the output termination of described the first one-way conduction switch module.
3. vehicle-mounted the switch between alternating current and standby battery circuit as claimed in claim 2 is characterized in that, described the second one-way conduction switch module comprises one-way conduction chip U2, resistance R 2 and capacitor C 2;
The described stand-by power supply of input termination of described one-way conduction chip U2, the second end of the described resistance R 1 of adjusting termination of described one-way conduction chip U2 and the first end of described capacitor C 2, the second end ground connection of described capacitor C 2, the first end of the described resistance R 2 of output termination of described one-way conduction chip U2, the first end of described resistance R 2 are the described automobile primary mains switch of the output termination of described the second one-way conduction switch module.
4. vehicle-mounted the switch between alternating current and standby battery circuit as claimed in claim 1 is characterized in that, described the first one-way conduction switch module comprises one-way conduction chip U1;
The described power management module of input termination of described one-way conduction chip U1, the output of described one-way conduction chip U1 are the described automobile primary mains switch of the output termination of described the first one-way conduction switch module.
5. vehicle-mounted the switch between alternating current and standby battery circuit as claimed in claim 4 is characterized in that, described the second one-way conduction switch module comprises one-way conduction chip U2;
The described stand-by power supply of input termination of described one-way conduction chip U2, the output of described one-way conduction chip U2 are the described automobile primary mains switch of the output termination of described the second one-way conduction switch module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474861 CN202817889U (en) | 2012-09-17 | 2012-09-17 | Vehicle-borne main/standby power supply switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474861 CN202817889U (en) | 2012-09-17 | 2012-09-17 | Vehicle-borne main/standby power supply switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817889U true CN202817889U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220474861 Expired - Fee Related CN202817889U (en) | 2012-09-17 | 2012-09-17 | Vehicle-borne main/standby power supply switching circuit |
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| Country | Link |
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| CN (1) | CN202817889U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872761A (en) * | 2014-04-09 | 2014-06-18 | 厦门玛司特电子工业有限公司 | Switching method of UPS power supplier and UPS power supplier |
| CN107465257A (en) * | 2017-09-04 | 2017-12-12 | 大唐融合通信无锡有限公司 | A kind of main power source and stand-by power supply automatic switch-over circuit |
| CN109849669A (en) * | 2019-04-01 | 2019-06-07 | 北斗航天汽车（北京）有限公司 | A kind of electric power supply control system of pure electric automobile car-mounted terminal |
-
2012
- 2012-09-17 CN CN 201220474861 patent/CN202817889U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872761A (en) * | 2014-04-09 | 2014-06-18 | 厦门玛司特电子工业有限公司 | Switching method of UPS power supplier and UPS power supplier |
| CN107465257A (en) * | 2017-09-04 | 2017-12-12 | 大唐融合通信无锡有限公司 | A kind of main power source and stand-by power supply automatic switch-over circuit |
| CN107465257B (en) * | 2017-09-04 | 2024-02-13 | 大唐融合物联科技无锡有限公司 | Automatic switching circuit for main power supply and standby power supply |
| CN109849669A (en) * | 2019-04-01 | 2019-06-07 | 北斗航天汽车（北京）有限公司 | A kind of electric power supply control system of pure electric automobile car-mounted terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20210917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |