CD71061 holiday lights ASIC

Description: A 220V AC input is processed through a VD4 bridge rectifier, followed by a resistor R10 buck regulator, a VD5 regulator, and a capacitor C2. This setup filters the supply to power the manifold. The output trigger signal from the manifold is directly applied to the gate of the thyristor VSI (VS8) to control its conduction angle, facilitating the flashing of HI-H8 lights. The manifold has connection modes for lengths of 3 feet and 15 feet (i.e., B1 to B4), allowing for the desired flashing effects.

The circuit begins with the 220V AC input, which is first converted to DC using the VD4 bridge rectifier. This rectifier consists of four diodes arranged in a bridge configuration that allows for full-wave rectification, ensuring that both halves of the AC waveform contribute to the output. The rectified output is then smoothed by the buck regulator formed by resistor R10, which reduces the voltage to a more manageable level for further processing.

Following the buck regulator, the voltage is stabilized by the VD5 regulator, which ensures that fluctuations in the input voltage do not affect the output supplied to the manifold. Capacitor C2 plays a crucial role in filtering out any residual ripple from the rectification process, providing a clean DC voltage to the manifold.

The manifold generates a trigger signal that is crucial for controlling the thyristor VSI (VS8). The gate of the thyristor receives this signal, which modulates the conduction angle. By adjusting the conduction angle, the circuit can control the power delivered to the HI-H8 lights, achieving the desired flashing effect.

The design allows for flexibility in connection lengths, with options for 3 feet and 15 feet (B1 to B4). This adaptability ensures that the circuit can be tailored to different applications while maintaining the necessary performance characteristics for effective light flashing. The entire system is designed to operate efficiently, ensuring reliable performance in various operational scenarios.220V AC by VDl a VD4 bridge rectifier, resistor Rl0 buck regulator VD5 regulator and C2, after filtering supply electricity to the manifold. Manifold output trigger signal is d irectly applied to the thyristor VSI ~ VS8 gate to control its conduction angle, from the drive to achieve HI-H8 lights flashing purposes. The first change Manifold l, 3 feet and 15 feet (ie B1 ~ B4) connected connection mode, you can get flashes we need.