Switching circuit, signal output device and test apparatus

Details Switching circuit, signal output device and test apparatus Switching circuit, signal output device and test apparatus

2011-03-22

2011-03-22

Fleming, Fritz M (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Plural switches

C307S141800

Reexamination Certificate

active

07911086

ABSTRACT:
A signal output device that outputs an output signal according to an input signal expressing a logical value that includes a high-voltage side switching circuit between a first terminal and a second terminal in accordance with a first control signal. The device includes a low-voltage side switching circuit between a first and second terminal for outputting a low-voltage side reference voltage in accordance with a second control signal and a control section. The high-voltage and low-voltage side switching circuits include a plurality of switching devices serially connected between the first terminal and the second terminal and each of which is opened in accordance with a provided control voltage. The control circuit opens the plurality of switching devices substantially in synchronization with each other, where a voltage inputted to the first terminal is outputted from the second terminal by short-circuiting between the first terminal and the second terminal.

REFERENCES:
patent: 6441513 (2002-08-01), Mulhauser
patent: 6836159 (2004-12-01), Wodnicki
patent: 2004/0207454 (2004-10-01), Hidaka et al.
Korean Office Action for application No. 10-2008-0029281, dated Feb. 22, 2010, and English tranlsation thereof, 8 pages.
Notice of Allowance for U.S. Appl. No. 12/613,322, mailed on Nov. 18, 2010 (10 pages).

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