Level shift circuit

Details Level shift circuit Level shift circuit

2007-05-01

2007-05-01

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S081000

Reexamination Certificate

active

11103893

ABSTRACT:
The circuit is to provide a type of level shift circuit that operates correctly even when the input timings of voltages from multiple power sources are different. Level shift circuit10that outputs the output signal of the high voltage source as a response to the input signal of the low voltage source has the following attribute: When feeding of the low voltage source is delayed with respect to feeding of the high voltage source, on the basis of the high voltage source, power-on-reset circuit20generates power-on-reset signal PWR. During the period before the input signal of the low voltage source is fed as a response to power-on-reset PWR, latch circuit30initializes the level shift circuit, and holds its output OUT at the low level.

REFERENCES:
patent: 6806757 (2004-10-01), Mukai
patent: 6809554 (2004-10-01), Wada
patent: 2004/0041615 (2004-03-01), Mukai
patent: 2004/0056682 (2004-03-01), Wada

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