Current limiting arrangement in a power converter

Details Current limiting arrangement in a power converter Current limiting arrangement in a power converter

1990-05-03

1991-06-11

Beha, Jr., William H.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323285, 361 18, H02M 3158

Patent

active

050235427

ABSTRACT:
A power converter unit includes a pair of switching DC/DC converter secti for positive and negative voltages which incorporate a MOSFET switching arrangement in which a pair of MOSFETs are forced to share the output load current equally, a current limiting arrangement which activates shutdown whenever the current threshold limit is exceeded, and an internal grounding arrangement which minimizes output of current spikes by isolating the switching spikes from the input and output. The current limiting arrangement includes a resistor for sensing the voltage between the input and output of the converter and a comparator for comparing the sensed voltage with a reference threshold voltage and being operable to shut down the converter when the sensed voltage exceeds the reference threshold voltage.

REFERENCES:
patent: 3796943 (1974-03-01), Nelson et al.
patent: 4428016 (1984-01-01), Brasfield
patent: 4618813 (1986-10-01), Vesce et al.

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