Power source reset circuit for contactless switch

Details Power source reset circuit for contactless switch Power source reset circuit for contactless switch

1985-07-29

1988-05-31

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307490, 307297, H03K 5159, H03K 301

Patent

active

047483520

ABSTRACT:
Disclosed is a power source reset circuit which deactivates a contactless switch for a time interval determined by a delay means so as to prevent any erroneous output from the contactless switch while the output of a power source is unstable immediately after the power source is turned on. The reliability of the delay means is enhanced by the use of a Miller integration circuit which includes a current mirror circuit as a means for amplifying electric current. Furthermore, a switching device may be connected across the capacitor for integration so that the charge in the capacitor may be quickly discharge when the power is turned off, for the purpose of setting the power source reset circuit ready for the subsequent action when the power source is turned on thereafter. This invention is useful in applications where the power source for the contactless switch is frequently turned on and off.

REFERENCES:
patent: 4367422 (1983-01-01), Leslie
patent: 4591733 (1986-05-01), Schroder
IBM Tech. Disclosure Bulletin, "Automatic Restart for Microprocessors", Blue et al., vol. 26, No. 10A, Mar. 84, pp. 5319 and 5320.
Article by A. D. Blumlein on Miller Integrator Source: "The Work of Alan Blumlein" British Kinematography Sound and Television, Vol. 50, No. 7, (Jul. 1968), p. 211.
Article on Miller Integrator with an Integrating Amplifier.

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