The invention provides a control panel power supply circuit for a vehicle. The vehicle control board power supply circuit comprises a power supply; the pre-voltage-stabilizing module can convert the initial voltage into a first direct-current voltage; the common-mode suppression module can suppress a common-mode electromagnetic interference signal of the pre-voltage-stabilizing module; the low-dropout voltage stabilizing module comprises at least three low-dropout voltage stabilizing circuits, and each low-dropout voltage stabilizing circuit takes the first direct-current voltage as the input voltage and takes the second direct-current voltage as the output voltage; and the differential mode suppression module can suppress the differential mode electromagnetic interference signal output by the low-dropout voltage stabilization module. According to the technical scheme, the control panel power supply circuit for the vehicle can solve the problem that when an existing power supply mode is adopted for supplying power to a control circuit, high-frequency electromagnetic interference noise is too large, and consequently the electromagnetic compatibility of a system is poor.
本发明提供了一种车辆用控制板供电电源电路。该车辆用控制板供电电源电路包括:供电电源;预稳压模块,预稳压模块能够将初始电压转化至第一直流电压;共模抑制模块,共模抑制模块能够对预稳压模块的共模电磁干扰信号进行抑制;低压差稳压模块,低压差稳压模块包括至少三个低压差稳压电路,各低压差稳压电路均以第一直流电压为输入电压,并以第二直流电压为输出电压;差模抑制模块,差模抑制模块能够对低压差稳压模块输出的差模电磁干扰信号进行抑制。本发明的技术方案的车辆用控制板供电电源电路,能够解决采用现有供电方式为控制电路进行供电,高频电磁干扰噪声过大,导致系统电磁兼容性较差的问题。
Control panel power supply circuit for vehicle
车辆用控制板供电电源电路
09.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Europäisches Patentamt | 2024
|POWER SUPPLY CIRCUIT FOR VEHICLE AND CONTROL METHOD OF POWER SUPPLY CIRCUIT FOR VEHICLE
Europäisches Patentamt | 2015
|