SECONDARY CONTROLLER APPLIED TO A SECONDARY SIDE OF A POWER CONVERTER AND OPERATION METHOD THEREOF
First Claim
1. A secondary controller applied to a secondary side of a power converter, the secondary controller comprising:
- a control signal generation circuit for generating a short-circuited control signal to a short winding switch after a gate control signal to make the short winding switch be turned on according to the short-circuited control signal;
a voltage detection signal generation circuit coupled to an output terminal of the secondary side of the power converter and the control signal generation circuit for generating a first detection signal to the control signal generation circuit when an output voltage of the power converter is less than a predetermined voltage, wherein the control signal generation circuit further generates a gate pulse control signal according to the first detection signal; and
a gate control signal generation circuit coupled to the control signal generation circuit for generating a gate pulse signal according to the gate pulse control signal, wherein the gate pulse signal is used for making a primary side of the power converter be turned on.
1 Assignment
0 Petitions
Accused Products
Abstract
A secondary controller applied to a secondary side of a power converter includes a control signal generation circuit, a voltage detection signal generation circuit, and a gate control signal generation circuit. The control signal generation circuit generates a short-circuited control signal to a short winding switch after a gate control signal to make the short winding switch be turned on. When an output voltage of the power converter is less than a predetermined voltage, the voltage detection signal generation circuit generates a first detection signal to the control signal generation circuit. The control signal generation circuit further generates a gate pulse control signal according to the first detection signal. The gate control signal generation circuit generates a gate pulse signal according to the gate pulse control signal, wherein the gate pulse signal is used for making a primary side of the power converter be turned on.
-
Citations
20 Claims
-
1. A secondary controller applied to a secondary side of a power converter, the secondary controller comprising:
-
a control signal generation circuit for generating a short-circuited control signal to a short winding switch after a gate control signal to make the short winding switch be turned on according to the short-circuited control signal; a voltage detection signal generation circuit coupled to an output terminal of the secondary side of the power converter and the control signal generation circuit for generating a first detection signal to the control signal generation circuit when an output voltage of the power converter is less than a predetermined voltage, wherein the control signal generation circuit further generates a gate pulse control signal according to the first detection signal; and a gate control signal generation circuit coupled to the control signal generation circuit for generating a gate pulse signal according to the gate pulse control signal, wherein the gate pulse signal is used for making a primary side of the power converter be turned on. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An operation method of a secondary controller applied to secondary side of a power converter, the secondary controller comprising a control signal generation circuit, a voltage detection signal generation circuit, and a gate control signal generation circuit, the operation method comprising:
-
the control signal generation circuit generating a short-circuited control signal to a short winding switch to make the short winding switch be turned on according to the short-circuited control signal after a gate control signal; the voltage detection signal generation circuit generating a first detection signal to the control signal generation circuit when an output voltage of the power converter is less than a predetermined voltage; the control signal generation circuit generating a gate pulse control signal according to the first detection signal; and the gate control signal generation circuit generating a gate pulse signal according to the gate pulse control signal, wherein the gate pulse signal is used for making a primary side of the power converter be turned on. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification