CONTROL CIRCUIT FOR SINGLE CHIP IC
First Claim
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1. A control circuit for a single chip IC controlled by an external power, comprising:
- a regulating circuit controlled by the external power and comprising a regulator to be enabled to generate an internal power for an internal circuit of the single chip IC;
an MCU controlled by the internal power and generating a switch signal to disable the regulator when the internal circuit of the single chip IC is standby; and
a trigger circuit controlled by the external power and generating a trigger signal based on an external signal to enable the regulator.
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Abstract
A control circuit for a single chip IC controlled by an external power is provided. The control circuit includes a regulating circuit, an MCU and a trigger circuit. The regulating circuit is controlled by the external power and includes a regulator to be enabled to generate an internal power for an internal circuit of the single chip IC. The MCU is controlled by the internal power and generates a switch signal to disable the regulator when the internal circuit of the single chip IC is standby. The trigger circuit is controlled by the external power and generates a trigger signal to enable the regulator based on an external signal.
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Citations
5 Claims
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1. A control circuit for a single chip IC controlled by an external power, comprising:
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a regulating circuit controlled by the external power and comprising a regulator to be enabled to generate an internal power for an internal circuit of the single chip IC; an MCU controlled by the internal power and generating a switch signal to disable the regulator when the internal circuit of the single chip IC is standby; and a trigger circuit controlled by the external power and generating a trigger signal based on an external signal to enable the regulator. - View Dependent Claims (2, 3, 4, 5)
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Specification