Power interface circuit with control chip powered from power chi

Details Power interface circuit with control chip powered from power chi Power interface circuit with control chip powered from power chi

1986-02-19

1988-11-22

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307297, 307303, H03K 301

Patent

active

047868260

ABSTRACT:
A power interface circuit includes a low voltage control chip and a separate, high voltage power chip contained in a common package. The high voltage power chip includes a power switching semiconductor device, such as a thyristor or power MOSFET, and is controlled under the influence of the control chip. Operating power for the low voltage control chip is provided from an auxiliary portion of the high voltage power chip. Such auxiliary portion comprises a voltage regulator, which derives its power from a high voltage lead in the power device. The high voltage lead may comprise a lead on which high voltage power is supplied for power switching purposes. The low voltage control chip may include a high degree of "intelligence", or logic functions, for controlling the power switching device, since the low voltage device may be a microprocessor or other device that can be fabricated with a high density of control elements.

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patent: 4639661 (1987-01-01), Williams et al.
J. Shepard, "On Chip Logic, Power Opens New Avnues for Applications", Electronic Engineering Times--Sep. 24, 1984--Issue 298--pp. 63, 64, 68 and 70.

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