POWER MANAGEMENT ALARM DEVICES

摘要

A system including an alarm device, the alarm device further includes a switch mode buck converter, a capacitor that is charged by the buck converter, a boost converter that powers an output device primarily from energy drawn from the capacitor and circuitry coupled to the buck converter and boost converter, wherein the buck converter charges the capacitor with a relatively constant current and wherein the circuitry dynamically adjusts an instantaneous duty cycle of the buck converter to achieve the constant current based upon a power setting of the output device.

主权项

1. A system comprising:
an alarm device, the alarm device further comprising:
a switch mode buck converter;a capacitor that is charged by the buck converter;a boost converter that powers an output device primarily from energy drawn from the capacitor; andcircuitry coupled to the buck converter and boost converter,wherein the buck converter charges the capacitor with a relatively constant current and wherein the circuitry dynamically adjusts an instantaneous duty cycle of the buck converter to achieve the constant current based upon a power setting of the output device.