Control circuit and control method with fixed bleed time
AssigneeShenzhen Sunmoon Microelectronics Co., Ltd.
InventorZhaohua LI
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Abstract
The present application provides a control circuit and a control method with fixed bleed time, a trigger signal is obtained and transmitted via a detection module; a timing module starts timing upon receiving the trigger signal, and outputs an end-of-timing signal when a preset time is reached; a control module outputs a control signal according to the end-of-timing signal; a bleeder module bleeds off a current within the preset time according to the control signal; and when the control circuit is powered off, the detection module, timing module, control module and bleeder module automatically perform a power-off reset.
Claims7
A control circuit with fixed bleed time, wherein the control circuit comprising:
- a detection module in connection with an output of a rectifier, and configured to obtain and transmit a trigger signal;
- a timing module in connection with the detection module, and configured to start timing upon receiving the trigger signal, and to output an end-of-timing signal when a preset time is reached;
- a control module in connection with the timing module, and configured to output a control signal according to the end-of-timing signal;
- and
- a bleeder module in connection with the control module, and configured to bleed off a current within the preset time according to the control signal.
A control method with fixed bleed time the control method comprising:
- obtaining, via a detection module, a trigger signal and transmitting the same;
- starting, via a timing module, timing upon receiving the trigger signal, and outputting an end-of-timing signal when a preset time is reached;
- outputting, via a control module, a control signal according to the end-of-timing signal;
- bleeding off, via a bleeder module, a current within the preset time according to the control signal.
Dependencies are inferred from the claim text.