Current-to-voltage converter and associate closed-loop control c

Details Current-to-voltage converter and associate closed-loop control c Current-to-voltage converter and associate closed-loop control c

1999-01-04

2000-07-25

Nguyen, Matthew

Electric power conversion systems

Current conversion

Constant current to constant voltage or vice versa

H02M 700

Patent

active

060943661

ABSTRACT:
A current-to-voltage converter (10), in particular for high input voltages, comprising a primary side (14), which comprises several serially connected partial systems (16, 18, 20), including respectively at least one transistor circuit breaker (T1, T2, T3) and at least one separate associate transformer primary winding (TP1, TP2, TP3), and a secondary side (22), over which the partial systems (16, 18, 20) are coupled into a common load output (24). In order to make available a current-to-voltage converter having an uncomplicated design and partial systems with improved balanced voltage, the invention herein provides that each of the serially connected partial systems (16, 18, 20) has a branch with an input inductance (L16.1, L18.1, L20.1) and at least one transistor circuit breaker (T1, T2, T3), that the inductances (L16.1, L18.1, L20.1) are applied electrically in series to input voltage U.sub.E at least temporarily over the corresponding transistor circuit breakers (T1, T2, T3) and produce a balanced voltage between the partial systems (16, 18, 20), and that one output each of the partial systems (16, 18, 20) is connected with respectively one transformer primary winding (TP1, TP2, TP3) acting as isolating transformer (TR1, TR2, TR3) for power supply.

REFERENCES:
patent: 3611105 (1971-10-01), Sautel
patent: 4581692 (1986-04-01), Nayberg et al.
patent: 4685039 (1987-08-01), Inou et al.
patent: 5602465 (1997-02-01), Clemente
patent: 5804890 (1998-09-01), Kakalee et al.

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