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US 2009/0153207 A1Published application
Method of forming a pwm controller and structure therefor
AssigneeSemiconductor Components Industries, LLC
InventorJonathan P. Kraft
Life of this patent
Estimating the term…
Abstract
In one embodiment, a PWM controller is configured to inhibit forming a drive signal responsively to an overload sense signal having a value that is no greater than a first value for a first time interval and to form a first duration of the first time interval responsively to the overload sense signal.
Claims18
A PWM controller comprising:
- a first circuit configured to provide a drive signal used to regulate a value of an output voltage to a desired value;
- a second circuit operably coupled to receive a feedback signal that is representative of the value of the output voltage;
- and
- a third circuit operably coupled to receive the feedback signal and to disable the drive signal responsively to the output voltage remaining no greater than a first value for a first time interval wherein the third circuit forms the first time interval to be inversely proportional to power supplied to a load.
1 more element
A method of forming a PWM controller comprising:
- configuring the PWM controller to form a drive signal used to regulate an output voltage to a desired value;
- and
- configuring the PWM controller to inhibit forming the drive signal responsively to an overload sense signal having a value that is no greater than a first value for a first time interval and to form a first duration of the first time interval responsively to a value of the overload sense signal.
A method of forming a PWM controller comprising:
- configuring the PWM controller to form a drive signal used to regulate an output voltage to a desired value;
- configuring the PWM controller to receive an overload sense signal;
- and
- configuring the PWM controller to inhibit forming the drive signal responsively to the overload sense signal having a value that remains no greater than a first value for a first time interval and to form a first duration of the first time interval inversely proportional to a value of the overload sense signal.
1 more element
Dependencies are inferred from the claim text.