Fig. 1. Structure and simulation diagram of photodetector

Fig. 2. Spectral response and AC characteristic curves

Fig. 3. Irradiance simulation of optocoupler

Fig. 4. Overall structure of chip

Fig. 5. Overall structure of grid drive chip

Fig. 6. Schematic diagram of transimpedance amplifier

Fig. 7. Schematic diagram of hysteresis comparator

Fig. 8. Simulation results of transimpedance amplifier and hysteresis comparator

Fig. 9. Simulation results of transimpedance amplifier and hysteresis comparator

Fig. 10. Simulation results of logic and dead time control module

Fig. 11. Overall simulation circuit of chip

Fig. 12. Simulation results of overall function of chip

Fig. 13. Chip layout

Fig. 14. Chip test platform

Fig. 15. Chip pin and chip physical drawing

Fig. 16. Overall function verification of chip