December 20, 2024 News: The China National Intellectual Property Administration disclosed that Suzhou Yutec Optoelectronics Co., Ltd. has been granted a patent titled 'An RC (Resistor-Capacitor) Delay Control Circuit' (Patent No. CN 222169625 U), with the application date of April 2024.

Patent Abstract: The utility model provides an RC (resistor-capacitor) delay control circuit comprising a charging voltage regulation circuit and a charge-discharge circuit. The charging voltage regulation circuit includes resistor R2, diode D2 and Zener diode ZD2, where resistor R2 is connected to diode D2, resistor R2 is connected to the input terminal, diode D2 is connected to the input terminal of the charge-discharge circuit, and Zener diode ZD2 is connected between resistor R2 and diode D2. The charge-discharge circuit includes capacitor C1, capacitor C2, resistor R3 and resistor R4, where both ends of capacitor C1 and capacitor C2 are connected together and to both ends of resistor R4, and one end of resistor R3 is connected to capacitor C1, capacitor C2 and resistor R4 while the other end serves as the output terminal of the charge-discharge circuit. This utility model provides an RC delay control circuit that utilizes resistors and capacitors to construct the delay circuit, featuring simple circuit design that meets customer requirements while achieving cost reduction objectives, with relatively straightforward manufacturing processes.