350W audio dedicated power circuit

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

Photocoupler

The following circuit is a 350W audio power supply circuit, a practical power supply circuit made by L6569, and STMicroelectronics has introduced a new electronic ballast half-driver L6569. The self-oscillating driver IC uses a bipolar CMOS-DMOS (BCD) process and an internal bootstrap configuration. Compared to products such as the IR2155 and IR2151, the external fast recovery bootstrap diode can be eliminated. Can be replaced by each other. In the high-drive (HO) and low-drive (LO) circuits, the dead time control circuit is added, and the time interval between the square-wave pulses of the 7-pin and 5-pin outputs is 1.2us, thereby avoiding two external powers. The tube is "common". Its 200W electronic transformer circuit is shown in Figure 1-1 as a dedicated audio power supply. Then provide a collection of foreign audio ICs.