Patent ID: 11935344
Assignee: AUTEL INTELLIGENT TECHNOLOGY CORP., LTD.
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The automobile key programmer according to claim 2, further comprising:
a main control chip connected to input terminals of the infrared modulation circuit, the amplitude shift keying modulation circuit and the frequency shift keying modulation circuit, respectively;
a first switch having a control terminal connected to the main control chip, wherein a coil input terminal of the first changeover switch is configured to connect a power supply, a coil output terminal of the first changeover switch is connected to an input terminal of the first switch, and an output terminal of the first switch is grounded;
a second switch having a control terminal connected to the main control chip, wherein a coil input terminal of the changeover second switch is configured to connect a power supply, a coil output terminal of the second changeover switch is connected to an input terminal of the second switch, and an output terminal of the second switch is grounded; wherein
the main control chip is configured to output a high level, respectively, to control the first switch and the second switch to turn on.