Integrated switch with internally adjusted conduction time

Details Integrated switch with internally adjusted conduction time Integrated switch with internally adjusted conduction time

2009-06-19

2010-10-26

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C363S021010

Reexamination Certificate

active

07821241

ABSTRACT:
An apparatus and method of providing a pulse width modulated signal that is responsive to a current are disclosed. An integrated circuit according to aspects of the present invention regulates an output of a power supply and includes a switch coupled to receive an external current. The integrated circuit also includes a controller coupled to the switch to control a switching of the external current by the switch in response to an external control signal and an internal current sense signal. The internal current sense signal is proportional to a current in the switch. The output of the power supply is also regulated in the absence of the internal current sense signal.

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EP 07 25 3933—European Search Report, dated May 6, 2010, 6 pages.
“TOP200-4/14 TOPSwitch Family Three-terminal Off-line PWM Switch,” Power Integrations, Inc., Jul. 1996, pp. 1-16.

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