Totem pole driver with cross conduction protection and default l

Details Totem pole driver with cross conduction protection and default l Totem pole driver with cross conduction protection and default l

1996-07-17

1998-07-14

Cunningham, Terry

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Signal transmission integrity or spurious noise override

327298, 327384, 327486, 327488, 326 14, 326 26, H03K 1716, H03K 19003

Patent

active

057810583

ABSTRACT:
A totem pole driver with cross conductive protection and default low impedance state output employs a totem pole output formed by top and bottom output transistors. A first circuit path switches the bottom output transistor on or off in response to a switching signal. A second circuit path, slower than the first circuit path, switches the top output transistor on in response to the switching signal after the bottom output transistor is switched off. A third circuit path switches the top output transistor off in response to a sync signal known to lead the switching signal. An emergency voltage supply is made available to hold the bottom output transistor on and the top output transistor off if the regulated circuit voltage is lost.

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