Control means and methods for a transistor switch circuit

Details Control means and methods for a transistor switch circuit Control means and methods for a transistor switch circuit

2006-08-29

2006-08-29

Lam, Tuan T. (Department: 2816)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S223000, C323S224000, C323S286000, C323S289000, C323S290000

Reexamination Certificate

active

07098630

ABSTRACT:
The invention relates to a control means and method for a transistor switch circuit controlling a power supply circuit for providing electric power to a load, comprising: a power supply stage having an LC circuit with an inductor, and a control stage having an estimation of the inductor current as a feedback signal. According to the invention, the current through the inductor is measured by means of a measuring winding (17) and an integrator having the function of an RC network. The current measuring circuit is very stable and absolutely free from any source of offset signals. Also, it has no frequency limitations.

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