Low power converter for compensating for mains voltage variations

A power converter for compensating for voltage variations in a circuit, the circuit comprising: a power stage arranged for receiving a mains input and for converting the mains input into a direct current (DC) output for driving a load; and a first snubber capacitor connected to a parallel branch having a load; wherein the power converter comprises an output capacitor connected in series with the first snubber capacitor, wherein the output capacitor is arranged for connection in series with the first snubber capacitor in said parallel branch with a load; wherein the power converter comprises a second snubber capacitor arranged for connection in series with the first snubber capacitor; and wherein the power converter is configured to charge the output capacitor from the second buffer capacitor when the DC output is below a predetermined threshold. 一种用于补偿电路中的电压变化的功率转换器，电路包括：功率级，该功率级被布置成用于接收市电输入并且用于将该市电输入转换成直流DC输出以用于驱动负载；以及连接到具有负载的并联支路中的第一缓冲电容器；其中功率转换器包括与第一缓冲电容器串联连接的输出电容器，其中输出电容器被布置用于与在具有负载的所述并联支路中的第一缓冲电容器串联连接；其中