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Voltage Regulator And D.C. Amplifier

IP.com Disclosure Number: IPCOM000097869D
Original Publication Date: 1961-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Yourke, HS: AUTHOR [+2]

Abstract

With switch S in position A, the circuit operates as a voltage regulator. Esaki diode E, R1 and L comprise a negative resistance oscillator. Its output frequency is dependent upon the current supplied thereto from V through R and R2.

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Voltage Regulator And D.C. Amplifier

With switch S in position A, the circuit operates as a voltage regulator. Esaki diode E, R1 and L comprise a negative resistance oscillator. Its output frequency is dependent upon the current supplied thereto from V through R and R2.

The output from the oscillator is applied to the base of transistor T1 to switch T1 on and off for each cycle of oscillation. As T1 turns on, a bias is developed across C1 and R3 which turns transistor T2 on. This decreases the current applied to the oscillator circuit from V and R. In this manner the repetition rate of the oscillations is controlled, and a regulated voltage is obtained at output terminal 4.

With the switch in position B, a variable voltage source G, e.g., a thermocouple, is connected in series with E to control the frequency of the oscillator. As the frequency of the oscillator determines the output voltage at terminal 4, the circuit, therefore, operates as a D. C. amplifier of the voltage generated by G.

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