Upi Semiconductor Corporation

Ya-Ping Chen

Wei-Ling Chen

Hung-Hsuan Cheng

A timing generator and a timing signal generation method for a power converter are provided. The timing generator includes an adjusting circuit and a timing generation unit. The adjusting circuit receives an error signal related to an output voltage of the power converter. The adjusting circuit generates an adjusting signal according to the error signal and a delay circuit. The timing generation unit generates a timing signal according to the error signal, the adjusting signal and a control signal. A width of the timing signal is changed with the error signal and the adjusting signal. Accordingly, the timing generator adjusts On-time/Off-time in response to a transient response.

Timing generator and timing signal generation method for power converter

A ramp signal generating method and a generator thereof, and a pulse width modulation signal generator are provided. The ramp signal generating method includes following steps: receiving an error signal, wherein the error signal relates to an output voltage of a power converter; generating an error delayed signal according to the error signal; and providing a ramp signal according to the error signal and the error delayed signal. The ramp signal is phase leading and inverting compared to the error signal. The ramp signal serves to improve a response speed of the power converter.

Ramp signal generating method and generator thereof, and pulse width modulation signal generator

A time signal generator and a time generating method used in a power converter are provided. The time generating method includes following steps. An error delay signal is generated according to an error signal, wherein the error signal is related to an output voltage of the power converter. A time signal is generated according to the error signal and the error delay signal. The time signal may serve to improve a response speed of the power converter.

Time signal generator and time signal generating method

A timing generator for a power converter is provided. The timing generator includes a threshold voltage generation circuit and a timing generation unit. The threshold voltage generation circuit receives an error signal related to an output voltage of the power converter. The threshold voltage generation circuit generates a threshold voltage according to the error signal. The timing generation unit generates a timing signal according to the error signal, the threshold voltage and a control signal. The timing generation unit provides a tracking signal. A width of the timing signal depends on a time when tracking signal departed from a level of the error signal to a level of the threshold voltage. The present invention also provides a timing signal generation method for the power converter.

A phase adjustment circuit of a power converter, the power converter, and a control method of the power converter are provided. The control method includes following steps. A delay signal is generated according to an error signal, and the error signal is associated with an output voltage of the power converter. A difference between the error signal and the delay signal is amplified. A control signal is provided according to the amplified difference and the error signal, and a phase of the control signal leads a phase of the error signal. The control signal serves to improve a response speed of the power converter.

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Hsinchu County, Taiwan

Ya-Ping Chen