Voltage regulator with non-linear excitation control

Details Voltage regulator with non-linear excitation control Voltage regulator with non-linear excitation control

Filed on

1984-02-14

Date issued

1984-12-04

Examiner

Hickey, R. J.

Patent Class

Electricity: single generator systems

SubClass

Automatic control of generator or driving means

SubSubClass

Voltage of generator or circuit supplied

Other Related Categories

320 64, 322 73, H02J 714, H02P 930, G05F 156

Type

Patent

Status

active

Patent number

044867026

Description

ABSTRACT:
An alternator regulator utilizes a non-linear, stepped ramp for use by a comparator which compares the ramp voltages with the alternator output and controls the switching of the excitation current accordingly. The non-linearity allows for tight control at low and normal alternator load levels, but also prevents a loss of accurate control at higher loads. A D/A converter makes the non-linearity possible, thus preventing the loss of control pulses at high loads, which loss can cause a large ripple component and excessive drop in average voltage output.

REFERENCES:
patent: 3984755 (1976-10-01), Lehnhoff et al.
patent: 4386310 (1983-05-01), Sievers
patent: 4388586 (1983-06-01), Lamoth
patent: 4388587 (1983-06-01), Lamoth et al.

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