Converter including direct current detection

Details Converter including direct current detection Converter including direct current detection

1995-05-17

1996-07-02

Wong, Peter S.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

363 89, 363 46, 323222, H02M 7217, G05F 170, G05F 1613

Patent

active

055325289

ABSTRACT:
A circuit arrangement which is provided with an up-converter (3) which comprises at least an inductive device (31), a switch (32), and a capacitive device (34) which in the operational state is periodically charged with a charging current in dependence on periodic switching of the switch. The switch is switched to the conducting state periodically during a substantially constant time t.sub.on. The circuit arrangement is provided with detection circuitry (I) for direct detection of the charging current. As a result, a load current which has a sinusoidal shape by good approximation is drawn from a connected AC voltage supply source by the circuit arrangement.

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patent: 5168237 (1992-12-01), Fieau et al.
patent: 5181159 (1993-01-01), Peterson et al.
patent: 5224025 (1993-06-01), Divan et al.

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