A can transceiver module

A transceiver module and transceiver technology, applied in the field of CAN communication, can solve the problems of accelerating battery energy, impact of bus communication, large electrostatic current, etc., and achieve the effects of reducing electric energy, reducing common-mode interference, and reducing power consumption
CN106713097BActive Publication Date: 2022-07-29GUANGZHOU ZHIYUAN ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU ZHIYUAN ELECTRONICS CO LTD
Publication Date
2022-07-29

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Abstract

The invention discloses a CAN transceiver module, comprising a CAN transceiver; a digital isolation unit connected with the CAN transceiver, receiving external digital signals and sleep control signals, electrically isolating the CAN transceiver and controlling the sleep or wake-up of the CAN transceiver ; Connected with the CAN transceiver and the digital isolation unit, an isolation power supply for supplying power to the CAN transceiver and the digital isolation unit; Connected with the isolation power supply, used to receive external sleep control signals to control the isolation power supply sleep or wake up power supply control unit. It realizes electrical isolation and reduces common mode interference; when the CAN transceiver and the isolated power supply are in a dormant state, the CAN transceiver can receive data from the CAN bus terminal, but cannot send data. The loss of the power supply itself is also reduced. When the CAN transceiver module is awakened, the CAN transceiver and the isolated power supply return to normal operation, thereby reducing the power consumption of the CAN transceiver module without affecting the normal communication of the bus.
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Description

technical field

[0001] The invention relates to the field of CAN communication, in particular to a CAN transceiver module. Background technique

[0002] In industries such as industrial control, automotive and BMS, CAN bus is widely used. Because the CAN bus is widely used in various industries, its application environment is also very different, and the bus communication is easily disturbed by the external environment. In order to ensure reliable bus communication, isolated CAN transceivers have been widely used. The isolated CAN transceiver has the function of electrical isolation, and at the same time, it can effectively reduce the influence of common mode interference on the bus, and greatly improve the reliability of bus communication.

[0003] However, in some industries such as BMS, CAN transceivers with low power consumption are usually required. In these industries, batteries are usually used for power supply, and the requirements for power consumption are very hi...

Claims

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