Voltage regulator

Details Voltage regulator Voltage regulator

1996-07-12

1998-05-26

Nguyen, Matthew V.

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

G05F 1613

Patent

active

057571678

ABSTRACT:
A voltage regulator in a battery powered device, such as an implantable cardiac defibrillator, provides regulated output voltage for other circuits. When large currents are drawn from the battery, such as during charging of defibrillation output capacitors, switches decouple the regulator from receiving power from the battery and couple the regulator to receive power from a stable boost output voltage generated by a boost converter. The regulator provides a stable regulated output voltage less noisy than the boost output voltage. Controlled switch conductances in the regulator provide operation over a wide range of output load currents.

REFERENCES:
patent: 4134408 (1979-01-01), Brownlee et al.
patent: 4408607 (1983-10-01), Maurer
patent: 4672973 (1987-06-01), Hofke
patent: 4868908 (1989-09-01), Pless et al.
patent: 5424683 (1995-06-01), Takahashi
patent: 5528087 (1996-06-01), Sibata et al.
J. G. Ryan, et al., "A Four Chip Implantable Defibrillator/Pacemaker Chipset", Proceedings of the IEEE 1989 Custom Integrated Circuits Conference, San Diego, CA, pp. 7.6.1-7.6.4, (May 15-18, 1989).

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