Current sense circuit for a bubble memory voltage booster

Details Current sense circuit for a bubble memory voltage booster Current sense circuit for a bubble memory voltage booster

1982-08-27

1985-04-30

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307296R, 307362, 307300, H03K 5153, H03K 524, H03K 1708

Patent

active

045146489

ABSTRACT:
In a voltage boost circuit for use in conjunction with a bubble memory operational driver, an output transistor is alternately turned on and off. When turned on, current flows through an inductor. When turned off, a high voltage is built up across the inductor which causes charge to be transferred to and stored in a capacitor. When the output transistor is turned on so as to permit current to flow through the inductor, a .DELTA.V.sub.BE /R current representative of the current flowing through the output transistor is compared with a .DELTA.V.sub.BE /R reference current. When the first current reaches and exceeds the reference current, the output transistor is turned off.

REFERENCES:
patent: 3979606 (1976-09-01), Ahmed

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