The embodiment of the invention provides a circuit and method for voltage detection of a slow charging guide signal, and belongs to the technical field of charging gun control. The circuit comprises a voltage sampling and conditioning unit which is used for receiving a slow charging guide signal and carrying out voltage regulation operation on the slow charging guide signal; one end of the switch control unit is connected with the voltage sampling and conditioning unit; and one end of the CP signal duty ratio detection unit is connected with one end of the voltage sampling and conditioning unit, and the other end of the CP signal duty ratio detection unit is used for outputting a PWM (Pulse Width Modulation) signal. According to the technical scheme, the circuit and the method for detecting the voltage of the slow charging guide signal, provided by the invention, realize real-time measurement on the amplitude of the CP signal in two states of opening and closing by arranging the switch control unit and the voltage sampling conditioning unit, and the CP signal duty ratio detection unit can be used for compatibly measuring the duty ratio of the CP signal at the same time.
本发明实施例提供一种用于慢充导引信号电压检测的电路及方法,属于充电枪的控制技术领域。所述电路包括:电压采样调理单元,用于接收慢充引导信号,并对所述慢充引导信号进行电压调节操作;开关控制单元,所述开关控制单元的一端与所述电压采样调理单元连接;CP信号占空比检测单元,所述CP信号占空比检测单元的一端与所述电压采样调理单元的一端连接,所述CP信号占空比检测单元的另一端用于输出PWM信号。通过上述技术方案,本发明提供的用于慢充导引信号电压检测的电路与方法通过设置开关控制单元和电压采样调理单元来实现开启和关断两种状态下,对CP信号幅值的实时测量,而CP信号占空比检测单元则可以同时兼容测量CP信号的占空比。
Circuit and method for detecting voltage of slow charging guide signal
用于慢充导引信号电压检测的电路及方法
2023-06-09
Patent
Electronic Resource
Chinese
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Charging circuit, control guide circuit and charging control method
European Patent Office | 2023
|Charging circuit, control guide circuit and charging control method
European Patent Office | 2023
|Charging circuit, control guide circuit and charging control method
European Patent Office | 2023
|Charging signal detection circuit and charging signal detection method
European Patent Office | 2021
|