Switching controller for parallel power supply
AssigneeSystem General Corp.
InventorsTa-Yung Yang, Yu-Min Chen, Chih-Ho Lin
Life of this patent
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Abstract
A switching controller for a parallel power supply is disclosed. The switching controller includes an input circuit coupled to an input terminal to receive an input signal for generating a phase-shift signal, a first integration circuit coupled to the input circuit to generate a first integration signal in response to a pulse width of the input signal, and a control circuit coupled to the first integration circuit to generate a switching signal for switching the power supply, the switching signal being enabled in response to the phase-shift signal, a pulse width of the switching signal being determined in accordance with the first integration signal.
Claims8
A switching controller for a power supply, the switching controller comprising:
- an input circuit coupled to an input terminal to receive an input signal for generating a phase-shift signal;
- a first integration circuit coupled to the input circuit to generate a first integration signal in response to a pulse width of the input signal;
- a control circuit coupled to the first integration circuit to generate a switching signal for switching the power supply;
- an oscillator generating a pulse signal and a ramp signal;
- and
- an error amplifier coupled to an output of the power supply to generate an error signal wherein if the input signal is not available, the switching signal is enabled in response to the pulse signal and disabled in response to a comparison of the error signal and the ramp signal and
- wherein the switching signal is enabled in response to the phase-shift signal, and a pulse width of the switching signal is determined in accordance with the first integration signal.
A switching controller for a power supply, the switching controller comprising:
- an input circuit for receiving an input signal and generating a phase-shift signal;
- a first integration circuit coupled to the input circuit for integrating the input signal and generating a first integration signal;
- a control circuit coupled to the input circuit and enabled by the phase-shift signal to generate a switching signal and disabled by a reset signal;
- a second integration circuit coupled to the control circuit for integrating the switching signal and generating a second integration signal;
- an oscillator generating a pulse signal and a ramp signal;
- and
- an error amplifier coupled to an output of the power supply to generate an error signal wherein if the input signal is not available, the switching signal is enabled in response to the pulse signal and disabled in response to a comparison of the error signal and the ramp signal.
Dependencies are inferred from the claim text.