Control apparatus

Details Control apparatus Control apparatus

2007-08-13

2009-08-11

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

C327S108000, C327S434000, C326S083000

Reexamination Certificate

active

07573316

ABSTRACT:
A control apparatus comprises a voltage source, a controlling unit and an enabling unit. The controlling unit receives an input signal and generates an output signal. The enabling unit controls whether the controlling unit generates the output signal or not according to an enabling signal. The enabling unit comprises a first switch, a second resistor, a third resistor and a third transistor. The first switch selectively turns on or off according to the enabling signal. A first terminal of the second resistor is coupled to the first switch. A first terminal of the third resistor is coupled to a second terminal of the second resistor and a second terminal of the third resistor is coupled to the ground terminal. A source of the third transistor is coupled to the ground terminal and a gate of the third transistor is coupled between the second and the third resistor.

REFERENCES:
patent: 5317206 (1994-05-01), Hanibuchi et al.
patent: 5386157 (1995-01-01), Murphy et al.
patent: 5455527 (1995-10-01), Murphy et al.
patent: 6384643 (2002-05-01), Grose et al.
patent: 6567441 (2003-05-01), Furudate et al.
patent: 7038504 (2006-05-01), Sakamoto et al.
patent: 7245155 (2007-07-01), Watarai

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