Patent ID: 11894760
Assignee: XIAMEN YAXON NETWORK CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H | IPC H

Claim 11:
12. The control method for the fuel-saving multi-state switch according to claim 11, wherein:
the PWM voltage regulating unit comprises a fuel-saving control circuit, a charging and discharging circuit, and an emitter follower circuit,
the fuel-saving control circuit comprises a switching tube,
an input terminal of the switching tube is connected to the PWM pulse signal,
an output terminal of the switching tube is connected to the charging and discharging circuit,
an input terminal of the charging and discharging circuit is connected to the output terminal of the switching tube,
an output terminal of the charging and discharging circuit is connected to the emitter follower circuit,
the emitter follower circuit comprises an operational amplifier,
an input terminal of the operational amplifier is connected to the charging and discharging circuit,
an output terminal of the operational amplifier is configured to output the voltage value,
when the PWM pulse signal is at a high level:
the switching tube is turned on and the charging and discharging circuit performs discharging, and

when the PWM pulse signal is at a low level:
the switching tube is turned off and the charging and discharging circuit performs charging.