Digital Dimmable Driver

• US 20140265935A1
• Filed: 03/14/2014
• Published: 09/18/2014
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Innosys, Inc.
• Original Assignee: Innosys, Inc.
• Inventors: Sadwick, Laurence P., Sackett, William B.
• Granted Patent: US 9,661,697 B2
• Time in Patent Office: Days
• US Class Current: 315/307
• CPC Class Codes: H05B 45/18 using temperature feedback
• CPC Class Codes: H05B 45/3725 Switched mode power supply [SMPS]
• CPC Class Codes: H05B 45/56 involving measures to prevent abnormal temperature of the LEDs
• CPC Class Codes: H05B 45/59 for reducing or suppressing flicker or glow effects

Abstract

A digital dimmable driver system includes an alternating current input, a dimmer operable to perform a phase cut operation on a waveform from the alternating current input, a driver circuit operable to switch from a dimming mode to a universal voltage input mode based on a phase angle of the dimmer, and a power output operable to power a light.

Claims

1. A digital dimmable driver system, comprising:

an alternating current input;

a dimmer operable to perform a phase cut operation on a waveform from the alternating current input;

a driver circuit operable to switch from a dimming mode to a universal voltage input mode based on a phase angle of the dimmer, wherein the digital dimmable driver system comprises at least one algorithm to determine a minimum output and a maximum output based on a minimum phase angle and a maximum phase angle; and

a power output operable to power a light.