Wake-up and sleep circuit of alternating current charging CP signal

An AC charging and signal technology, which is applied in charging stations, electric vehicle charging technology, battery/fuel cell control devices, etc., can solve the problems of complex composition and high design cost of PWM signal detection and processing circuits and PWM signal drive circuits

Pending Publication Date: 2020-12-01
LISHEN (QINGDAO) NEW ENERGY CO LTD
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Problems solved by technology

[0006] In view of the above problems, some existing technical solutions use the PWM signal output by the AC charging interface CP terminal (that is, the charging wake-up terminal) to wake up the BMS and control the BMS to sleep, but the PWM signal detection and processing circuits of these technical solutions, PWM The composition of the signal drive circuit is more complicated, and the design cost is higher

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  • Wake-up and sleep circuit of alternating current charging CP signal
  • Wake-up and sleep circuit of alternating current charging CP signal

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Embodiment Construction

[0091] In order to make the technical means realized by the present invention easier to understand, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the related application, not to limit the application. In addition, it should be noted that, for ease of description, only parts relevant to the present application are shown in the drawings.

[0092] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0093] see figure 1 , figure 2 , the present invention provides a wake-up and sleep circuit for AC charging CP signals, including a 5V constant power module 100, a CP signal con...

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Abstract

The invention discloses a wake-up and sleep circuit of an alternating current charging CP signal. The circuit is characterized by comprising a 5V constant power module, a CP signal conversion module,a D trigger module, a D latch module, a BMS main control chip, a selection switch module and a power supply module, and the 5V constant power module is connected with the CP signal conversion module,the D trigger module and the D latch module; the CP signal conversion module is sequentially connected with the D trigger module, the D latch module, the selection switch module and the power supply module; the BMS main control chip is connected with the D trigger module, the D latch module, the selection switch module and the power supply module. With logic combination control of high and low level changes of input and output signals of the D flip-flop and the D latch, the functions of automatically awakening the BMS and enabling the BMS to automatically sleep of the AC charging CP signal arerealized, and the circuit has important production practice significance.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a wake-up and sleep circuit of an AC charging CP signal. Background technique [0002] The Battery Management System (BMS for short) is a battery protection device and a bridge between the battery and the load terminal. be used safely. The battery management system BMS is widely used in electric vehicles, communication base stations, robots and many other fields. [0003] Taking an electric vehicle as an example, when using AC charging to charge the vehicle power battery system (hereinafter referred to as the battery system), if the charging gun on the car charging pile is not pulled out for a long time after charging, the battery system will be consumed due to power consumption. It will affect the cruising range of the car; it will also cause the on-board battery to feed, which will affect the normal use of on-board electrical and electronic components (including BM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10B60L53/14B60L1/00
CPCB60L1/00B60L53/14B60L58/10Y02T10/70Y02T10/7072Y02T90/14
Inventor 张明艳
Owner LISHEN (QINGDAO) NEW ENERGY CO LTD
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