Control circuit employing follower circuit to control reference signal and related circuit control method
AssigneeMediaTek Singapore Pte. Ltd.
InventorCheng Tao
Life of this patent
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Abstract
A control circuit includes: a first current generating circuit arranged for generating at least one output current according to a reference signal; a second current generating circuit arranged for generating a reference current corresponding to the reference signal according to the reference signal; and a follower circuit coupled to the second current generating circuit for generating a control current according to the reference current, and feeding back the control current to the first current generating circuit from the second current generating circuit in a signal-following manner to control the reference signal.
Claims17
A control circuit, comprising:
- a first current generating circuit, arranged for generating at least one output current according to a reference signal;
- a second current generating circuit, arranged for generating a reference current corresponding to the output current according to the reference signal;
- and
- a follower circuit, coupled to the second current generating circuit, for generating a control current according to the reference current, and feeding back the control current to the first current generating circuit from the second current generating circuit in a signal-following manner to control the reference signal.
A circuit control method, comprising:
- generating at least one output current according to a reference signal;
- generating a reference current corresponding to the output current according to the reference signal;
- and
- generating a control current according to the reference current, and feeding back the control current in a signal-following manner to control the reference signal.
Dependencies are inferred from the claim text.