Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Patent
1992-08-27
1995-07-04
Wolfe, Willis R.
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
327502, H03K 17687
Patent
active
054304016
ABSTRACT:
An electronic switch is disclosed for switching relatively high voltages, such as telecommunications voltages of the order of -48 volts, in response to logic levels of typically 0 to 5 volts. The switch comprises a MOSFET having a source-drain switching path and a gate; a control transistor controlled from a logic level control terminal; and a potential divider MOSFET source and the control transistor and having a tapping point coupled to the MOSFET gate. The potential divider includes a zener dime and/or a resistor connected between the MOSFET source and gate. The sinitch can be used with a current sensing resistor and a monostable circuit to fonn an automatically-reset circuit interrupter or electronic fuse.
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"DPDT FET", J. Markus, Modern Electronic Circuits Reference Manual, p. 957. No date presented.
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"Solid-State Signal Switching: It's Getting Better All The Time", J. Cohen, EDN Magazine, Nov. 15, 1972, pp. 22-28.
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"Solid-State DPDT Relay", by the Editors of EEE Magazine, Electronic Circuit Design Handbook, p. 372, No date presented.
Northern Telecom Ltd.
Wolfe Willis R.
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