Method and apparatus for adapting voltage control in alarm syste

Details Method and apparatus for adapting voltage control in alarm syste Method and apparatus for adapting voltage control in alarm syste

1998-05-14

1999-10-12

Riley, Shawn

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

G05F 1613

Patent

active

059660023

ABSTRACT:
An output voltage supplied to alarm devices in an alarm system is adjusted according to either a standby condition or an alarm condition. In the standby condition, a power control circuit adjusts power so that a standby voltage is supplied to the alarm devices which allows the alarm devices to respond to poll messages regarding their alarm status. An alarm condition is triggered when an alarm device responds with an alarm status indicating an alarm condition. During an alarm condition, the power control circuit adjusts power to provide a higher voltage to the alarm devices in order to allow additional alarm device functions to be operated.

REFERENCES:
patent: 4530607 (1985-07-01), Bungener

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