LINEAR-PREDICT SAMPLING FOR MEASURING DEMAGNETIZED VOLTAGE OF TRANSFORMER
First Claim
1. A linear-predict sampling circuit of a power converter, comprising:
- a signal-generation circuit, generating a sample signal in response to a first signal, a second signal, and a switching signal, wherein the first signal is correlated to a magnetized voltage of a transformer, and the second signal is correlated to a demagnetized voltage of the transformer; and
a sample-and-hold circuit, coupled to the transformer to generate a feedback signal by sampling the demagnetized voltage of the transformer in response to the sample signal, wherein the feedback signal is correlated to the output voltage of the power converter, and the switching signal is generated in response to the feedback signal for switching the transformer and regulating the output of the power converter.
9 Assignments
0 Petitions
Accused Products
Abstract
A linear-predict sampling circuit is developed to generate a feedback signal by detecting a demagnetized voltage of the transformer. A switching signal is generated in response to the feedback signal for regulating the output of the power converter. A signal-generation circuit is used to generate a sample signal in response to a first signal, a second signal, and the switching signal. The first signal is correlated to a magnetized voltage of the transformer. The second signal is correlated to the demagnetized voltage of the transformer. A sample-and-hold circuit is coupled to the transformer to generate the feedback signal by sampling the demagnetized voltage of the transformer in response to the sample signal. The feedback signal is correlated to the output voltage of the power converter.
63 Citations
15 Claims
-
1. A linear-predict sampling circuit of a power converter, comprising:
-
a signal-generation circuit, generating a sample signal in response to a first signal, a second signal, and a switching signal, wherein the first signal is correlated to a magnetized voltage of a transformer, and the second signal is correlated to a demagnetized voltage of the transformer; and a sample-and-hold circuit, coupled to the transformer to generate a feedback signal by sampling the demagnetized voltage of the transformer in response to the sample signal, wherein the feedback signal is correlated to the output voltage of the power converter, and the switching signal is generated in response to the feedback signal for switching the transformer and regulating the output of the power converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A linear-predict sampling apparatus of the power converter, comprising:
-
a signal-generation circuit generating a sample signal in response to a magnetized voltage of a transformer and the magnetization period of the transformer; and a sample-and-hold circuit coupled to the transformer to generate a signal by sampling the demagnetized voltage of the transformer in response the sample signal, wherein the signal is correlated to the output voltage of the power converter. - View Dependent Claims (12, 13, 14, 15)
-
Specification