Apparatus for detecting an object

Details Apparatus for detecting an object Apparatus for detecting an object

1981-12-31

1983-10-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214R, H01J 4014

Patent

active

044094736

ABSTRACT:
An optical type detector comprises a full-wave rectifier circuit to which input power source voltage arbitrarily selected is supplied, a switching regulator, a detecting section supplied with power from the switching regulator and optically detecting an object to output a detection signal, and a relay switch for performing switching operation in response to detection signal and producing a detection output corresponding to detection signal. The switching regulator includes a drive section which has two transistors connected in series with each other. When the input power voltage is applied, the two transistors divide the power voltage into substantially equal two parts.

REFERENCES:
patent: 4095887 (1978-06-01), van Herten et al.

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