Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1995-03-29
1997-07-22
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327 55, 327391, 326 81, H03K 19094, H03L 500
Patent
active
056507429
ABSTRACT:
In a voltage-level shifter, a P-channel MOS transistor (early cut-off circuit) is interposed between a voltage source of the voltage-level shifter and a source of a P-channel MOS transistor which tends to be turned on when a voltage of a voltage source of an input signal supplies a low voltage or a large potential difference exists between the voltage source of the input signal and the voltage source of the voltage-level shifter, and is supplied on its gate with the input signal of the voltage-level shifter. Accordingly, the interposed P-channel MOS transistor is turned off prior to the P-channel MOS transistor having a tendency of being turned on, so that the voltage level of the output signal of the voltage-level shifter can be rapidly fixed at the "L" level.
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Callahan Timothy P.
Matsushita Electric - Industrial Co., Ltd.
Nu Ton My-Trang
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