Discriminator circuits

Details Discriminator circuits Discriminator circuits

1979-03-26

1981-03-24

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307358, 307363, 307567, H03K 5153, H03L 500

Patent

active

042582776

ABSTRACT:
A discriminator circuit is arranged to emit a defined output signal when a certain value of a variable direct supply voltage is reached. The discriminator circuit comprises a current mirror circuit in the form of a first transistor connected to the supply voltage source and arranged to divide an input current into two current branches by means of two collector electrodes. One current branch comprises a Zener diode and a first resistor and this branch is connected to a limiter circuit for limiting the rise in the supply voltage to a predetermined maximum value and the other current branch comprises a second resistor and a second transistor for emitting an output signal from the discriminator circuit.

REFERENCES:
patent: 3523198 (1970-08-01), Keller
patent: 3988644 (1976-10-01), Krone
patent: 4013902 (1977-03-01), Payne

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