Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2006-07-25
2006-07-25
Vu, Bao Q. (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
C323S272000
Reexamination Certificate
active
07081739
ABSTRACT:
The invention relates to a voltage converting circuit (2) having:—an input terminal (11) for connection to a varying voltage or current source, and an output terminal (12) with a supply voltage,—an inductive element (5) being with a first terminal connected to the input terminal and with a second terminal to a capacitive element (8) and to the output terminal (12), the capacitive element (8) being with one terminal connected to a reference voltage (9),—a first switch (6) being with a first terminal connected to the second terminal of the inductive element (5), and with a second terminal to the reference voltage (9), the first switch (6) comprising a gate electrode (31) for opening and closing of the switch when a control voltage of a first level is applied to the gate,—an oscillator (13) comprising a power input (14) connected to the output terminal (12), a start-up output (15) connected to the gate electrode (31) of the first switch (6) for supplying a pulse-like signal to the gate electrode (31) and an oscillator output (16), and—a second switch (7) connected in parallel with the first switch (6), the second switch having a gate electrode (32) connected to the oscillator output (16), wherein the first switch (6) remains opened when the supply voltage at the output terminal (12) reaches a predetermined level, and the second switch (7) is operated by the oscillator output (16) at a second voltage level that is higher than the first voltage level.
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Osinga Anne Jurjen
Welvaadt Jochem
Kirkpatrick & Lockhart Nicholson & Graham LLP
True Solar Autonomy Holding B.V.
Vu Bao Q.
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