The invention discloses a series-parallel connection output voltage detection circuit and a voltage control method of an output load, and aims to switch the series-parallel connection state of each conversion unit based on a state control unit. The first direct-current voltage and the second direct-current voltage which are switched in the series-parallel connection mode can be detected at the same time only by adopting the voltage sampling unit, other circuits or modules do not need to be adopted for auxiliary testing, and output voltage detection in the series-parallel connection switching mode can be achieved while the wide-range output voltage requirement is met; the design cost can be saved, and during voltage sampling, the first diode, the first resistor and the second resistor are designed, so that the stability of output end voltage detection can be improved; for the adaptive output load, the output voltage of the output load can be controlled through the sampling value of the first direct-current voltage, the sampling value of the second direct-current voltage and the series-parallel connection state of the conversion unit, and the working stability of the output load can be improved.
本发明公开了一种串并联输出电压检测电路以及输出负载的电压控制方法,在基于状态控制单元对各个变换单元的串并联状态进行切换的情况下,只需采用电压采样单元就能够对切换后的串联或并联模式下的第一直流电压、第二直流电压进行同时检测,无需采用其他电路或模块进行辅助测试,即在满足宽范围输出电压需求的同时可以实现串并联切换模式下的输出电压检测,能够节约设计成本,并且在电压采样时,设计了第一二极管、第一电阻和第二电阻,可以提高输出端电压检测的稳定性;对于相适配的输出负载,可以通过第一直流电压的采样值、第二直流电压的采样值以及变换单元的串并联状态,控制输出负载的输出电压,有利于提高输出负载的工作稳定性。
Series-parallel output voltage detection circuit and voltage control method of output load
串并联输出电压检测电路以及输出负载的电压控制方法
2024-09-10
Patent
Electronic Resource
Chinese
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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