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RMS Voltage Regulator

IP.com Disclosure Number: IPCOM000094306D
Original Publication Date: 1966-Aug-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Mattson, GL: AUTHOR

Abstract

An AC supply from transformer 10 furnishes voltage to load 15 which includes a rectifying device such as series diode 16. The load voltage is regulated by clipping the peaks from the output of transformer 10. Thus, most of the line voltage variations are prevented from appearing at load 15. Until zener diode D1 breaks down, the load voltage is similar in magnitude and waveshape to the output of transformer 10. When D1 breaks down, the voltage across R1 increases. Transistors T1 and T2 are driven from saturation into the active region. The load voltage remains constant during the time D1 is conducting. Diode D2 prevents application of a high voltage to the collector-base junction of T2.

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RMS Voltage Regulator

An AC supply from transformer 10 furnishes voltage to load 15 which includes a rectifying device such as series diode 16. The load voltage is regulated by clipping the peaks from the output of transformer 10. Thus, most of the line voltage variations are prevented from appearing at load 15. Until zener diode D1 breaks down, the load voltage is similar in magnitude and waveshape to the output of transformer 10. When D1 breaks down, the voltage across R1 increases. Transistors T1 and T2 are driven from saturation into the active region. The load voltage remains constant during the time D1 is conducting. Diode D2 prevents application of a high voltage to the collector-base junction of T2.

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