SWITCHING DEVICE COMPENSATION CIRCUIT
First Claim
1. A switching device compensation circuit, which performs switching control by applying a control pulse to a control terminal of a switching device, the switching device compensation circuit comprising:
- a first threshold voltage change detection unit configured to detect a change in threshold voltage of the switching device from an output voltage controlled via the switching device;
a first control signal generating unit configured to generate a first control signal in accordance with an output of the first threshold voltage change detection unit; and
an amplitude control unit configured to control the amplitude of the control pulse in accordance with an output of the first control signal generating unit.
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Accused Products
Abstract
A switching device compensation circuit performs switching control by applying a control pulse to a control terminal of a switching device. The switching device compensation circuit includes a first threshold voltage change detection unit, a first control signal generating unit, and an amplitude control unit. The first threshold voltage change detection unit detects a change in threshold voltage of the switching device from an output voltage controlled via the switching device. The first control signal generating unit generates a first control signal in accordance with an output of the first threshold voltage change detection unit. The amplitude control unit controls the amplitude of the control pulse in accordance with an output of the first control signal generating unit.
21 Citations
12 Claims
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1. A switching device compensation circuit, which performs switching control by applying a control pulse to a control terminal of a switching device, the switching device compensation circuit comprising:
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a first threshold voltage change detection unit configured to detect a change in threshold voltage of the switching device from an output voltage controlled via the switching device; a first control signal generating unit configured to generate a first control signal in accordance with an output of the first threshold voltage change detection unit; and an amplitude control unit configured to control the amplitude of the control pulse in accordance with an output of the first control signal generating unit. - View Dependent Claims (2, 3, 4)
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5. A switching device compensation circuit, which performs switching control by applying a control pulse to a control terminal of a switching device, the switching device compensation circuit comprising:
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a second threshold voltage change detection unit configured to detect a change in threshold voltage of the switching device from a current flowing through the switching device; a second control signal generating unit configured to generate a second control signal in accordance with an output of the second threshold voltage change detection unit; and an offset voltage control unit configured to control an offset voltage for the control pulse in accordance with an output of the second control signal generating unit. - View Dependent Claims (6, 7, 8, 9, 10, 12)
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11. A sampling circuit comprising:
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an AC component extracting unit configured to extract an amplitude component of an AC signal from an input signal; a first adder configured to subtract an output of the AC component extracting unit from the input signal; an averaging unit configured to average an output of the first adder; a rectifying unit configured to rectify the output of the AC component extracting unit; a smoothing unit configured to smooth an output of the rectifying unit; and a second adder configured to subtract an output of the smoothing unit from an output of the averaging unit and outputs a bottom-hold value.
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Specification