Patent ID: 11881138
Assignee: SHANGHAI AVIC OPTOELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 7:
8. The drive circuit of claim 6, wherein the excitation unit comprises a fifth switching device, a sixth switching device, a seventh switching device and an eighth switching device;
the fifth switching device is connected between the third power supply terminal and the second signal line, and a control terminal of the fifth switching device is electrically connected to the first detection terminal;
the sixth switching device is connected between the third power supply terminal and the second signal line, and a control terminal of the sixth switching device is electrically connected to the first control terminal;
the seventh switching device is connected between the fourth power supply terminal and the first signal line, and a control terminal of the seventh switching device is electrically connected to the second detection terminal; and
the eighth switching device is connected between the fourth power supply terminal and the first signal line, and a control terminal of the eighth switching device is electrically connected to the second control terminal.