The invention relates to a mobile phone charging bracket and a charging circuit thereof. The mobile phone charging bracket is characterized by comprising a constant-current constant-voltage circuit which is connected with a battery car power supply and is used for carrying out constant-current constant-voltage processing on direct current of the battery car power supply, a voltage reduction circuit which is used for reducing the voltage of the direct current subjected to constant-current and constant-voltage processing, a charging identification circuit which is connected with a mobile phone charging line and is used for identifying a mobile phone, and a synchronous rectification circuit which is used for carrying out synchronous rectification on the direct current subjected to voltage reduction according to an identification result of the charging identification circuit; the constant-current constant-voltage circuit is connected with the charging identification circuit through the voltage reduction circuit; and the constant-current and constant-voltage circuit is also connected with the synchronous rectification circuit through the voltage reduction circuit. With the mobile phonecharging bracket and the charging circuit thereof adopted, the mobile phone can be charged by the battery car power supply.
本发明涉及一种手机充电支架及其充电模块,其技术方案要点是:包括用于连接电瓶车电源、并对电瓶车电源的直流电进行恒流恒压处理的恒流恒压电路;用于对恒流恒压处理后的直流电进行降压的降压电路;用于与手机充电线连接、并对手机进行识别的充电识别电路;用于根据充电识别电路的识别结果对降压后的直流电进行同步整流的同步整流电路;所述恒流恒压电路通过降压电路连接充电识别电路;所述恒流恒压电路还通过降压电路连接同步整流电路;本申请具有能够利用电瓶车电源对手机充电的优点。
Mobile phone charging bracket and charging circuit thereof
一种手机充电支架及其充电电路
2020-10-13
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / 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 |