The utility model relates to a rectifier circuit and a rectifier, which relates to the field of electronic technology and can work normally when the voltage of the AC signal of the input rectifier circuit is less than Vth. Rectifier circuit (E) includes bias module (A), comparison module (B), amplification module (C) and rectifier transistor (D); power end of bias module (A) connects the output end of rectifier circuit (E), output end of bias module (A) connects the bias end of comparison module (B) and the bias end of amplification module (C), the first input end of comparison module (B) connects the input end of rectifier circuit (E), and the second transmission of comparison module (B). The input end is connected with the output end of the rectifier circuit (E), the output end of the comparison module (B) is connected with the input end of the amplifier module (C), the power end of the amplifier module (C) is connected with the output end of the rectifier circuit (E), the output end of the amplifier module (C) is connected with the gate of the rectifier transistor (D), the source end of the rectifier transistor (D) is connected with the input end of the rectifier circuit (E), and the drain end of the rectifier transistor (D) is connected with the input end of the rectifier circuit (E). Out of the end. The bias module (A) provides a bias voltage smaller than the threshold voltage of the transistor for the comparison module (B) and the amplification module (C); the comparison module (B) compares the input voltage of the rectifier circuit (E) and the output voltage of the rectifier circuit (E) and outputs the control signal to the amplification module (C); and the amplification module (C) amplifies the control signal and outputs it to the gate of the rectifier transistor (D) to control its conductance. Open or close.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。
【技术保护点】
PCT国内申请，权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请，...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。