Ratio adaptive gated oscillator

Details Ratio adaptive gated oscillator Ratio adaptive gated oscillator

2005-05-17

2005-05-17

Laxton, Gary L. (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S282000, C323S284000, C323S288000

Reexamination Certificate

active

06894462

ABSTRACT:
The present invention can be employed with any power supply circuit where it is desirable to employ a ratio adaptive, gated oscillator based step up switching regulator with a selectable duty cycle. By selecting a particular value for a capacitor coupled between the regulator's Frequency and Switch pins, a user can optimize the regulator's duty cycle for a particular application. Also, by adding a resistor in series with the capacitor, a time constant is created that limits the total charge transfer from taking place at high frequencies more than it does at low frequencies. Additionally, by selecting particular values for the capacitor and resistor, the user can adjust the duty cycle for an application as a function of the battery voltage and output voltage.

REFERENCES:
patent: 6275018 (2001-08-01), Telefus et al.
patent: 6593725 (2003-07-01), Gallagher et al.

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