Switching current spike limiter for three phase coupled inductor

Details Switching current spike limiter for three phase coupled inductor Switching current spike limiter for three phase coupled inductor

1995-08-21

1997-09-09

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 49, 361101, 363 89, H02J 704

Patent

active

056660421

ABSTRACT:
A polyphase boost inductor battery charger having a switching current spike limiter that employs a switching transistor, such as a bipolar, MOSFET, or IGBT transistors, for example. The switching current spike limiter includes a controller whose inputs are coupled to receive AC line voltage from a power source and battery voltage from a battery. A comparator is coupled to receive the AC line voltage and the battery voltage. Outputs from the controller and the comparator are coupled to an OR gate. An output of the OR gate is coupled through a switch driver to a series pass switch which comprises the switching transistor. The switching transistor is coupled to the inductor. A flyback diode is coupled across the output of the switching current spike limiter. The switching current spike limiter controls current spikes that flow when the AC line voltage (V.sub.AC) peak is greater than the battery voltage (V.sub.batt). To determine the condition V.sub.AC peak>V.sub.batt necessary for the switching transistor to be held OFF, the AC line voltage is compared to the battery voltage in the comparator. Hysteresis is applied to the comparator to avoid high frequency oscillation at its output.

REFERENCES:
patent: 3573554 (1971-04-01), Thoebald
patent: 4368499 (1983-01-01), Stiffer
patent: 4509774 (1985-04-01), Hoffman
patent: 4510431 (1985-04-01), Winkler
patent: 5019952 (1991-05-01), Smolenski et al.
patent: 5161082 (1992-11-01), Alfonso
patent: 5191520 (1993-03-01), Eckersley
patent: 5479119 (1995-12-01), Tice et al.

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