A method and system for reducing static power consumption of vehicle power supply
A vehicle-mounted power supply and static power consumption technology, applied in load supply circuits, collectors, electric vehicles, etc., can solve problems such as large power consumption, and achieve the effect of reducing power loss and static power consumption
Active Publication Date: 2021-09-24
SHENZHEN DINGSHUO TONGBANG TECH CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a method and system for reducing the static power consumption of the vehicle power supply, which can greatly reduce the static power consumption of the vehicle power supply, so as to solve the problem of large power consumption in the above-mentioned background technology
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] see Figure 1-7 , a method for reducing static power consumption of a vehicle power supply, comprising the steps of:
[0029] Step 1: Connect the input terminal of the high-voltage blocking MOS module 1 to the high-voltage input module 2 to input the high-voltage power supply, connect the output terminal of the high-voltage blocking MOS module 1 to the input terminal of the high-voltage to low-voltage LDO module 4, and input a stable high-voltage power ...
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The invention discloses a method and system for reducing the static power consumption of a vehicle power supply, including a high-voltage blocking MOS module, a high-voltage input module, an auxiliary power supply module, a high-voltage to low-voltage LDO module, a rising edge detection circuit, and a single-pulse start-up auxiliary power supply circuit, auxiliary power shutdown circuit, vehicle power supply and single chip microcomputer, the input end of the high voltage blocking MOS module is electrically connected with the output end of the high voltage input module. The method and system for reducing the static power consumption of the vehicle-mounted power supply proposed by the present invention wake up the vehicle-mounted power supply and the auxiliary power supply module by using a single-pulse start-up auxiliary power supply circuit. When the power supply is not working, the vehicle power supply is controlled to be disconnected, and the auxiliary power supply module supplies power, thereby greatly reducing the electrical loss of the vehicle power supply and the auxiliary power supply module.
Description
technical field [0001] The invention relates to the technical field of vehicle power supplies, in particular to a method and system for reducing static power consumption of vehicle power supplies. Background technique [0002] Existing cars all adopt dual power supply, including vehicle power supply and dormant power supply, wherein the vehicle power supply is used as the main power supply, when the car is started, the vehicle power supply is controlled to be connected, and when the car is not started, the vehicle power supply is controlled to be disconnected, so as to Reduce the power loss of the vehicle power supply. When the power is insufficient, the dormant power supply is controlled to be turned on. When the vehicle power supply is connected, the dormant power supply is controlled to be disconnected to reduce the loss of the dormant power supply. In order to reduce the static power consumption of the vehicle power supply, a A method and system for reducing static power...
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IPC IPC(8): H02J7/00B60R16/03
CPCB60R16/03H02J7/0063
Inventor 刘大勇李华
Owner SHENZHEN DINGSHUO TONGBANG TECH CO LTD