Versatile Power, Inc. Patent applications |
Patent application number | Title | Published |
20150008790 | PHASE TRACK CONTROLLER IMPROVEMENT TO REDUCE LOSS OF LOCK OCCURRENCE - A system and method for driving ultrasonic transducers and improvements to a phase track controller for reducing loss of lock occurrence is disclosed and described. | 01-08-2015 |
20140312968 | DIFFERENTIAL OUTPUT INDUCTOR FOR CLASS D AMPLIFIER - A circuit includes a first input terminal for receiving a first pulsed voltage and a second input terminal for receiving a second pulsed voltage. The circuit further includes a load and an LC filter. The LC filter includes a coupled inductor pair that includes a first winding and a second winding magnetically coupled to each other. The first winding is coupled between the first input terminal and the load, and the second winding is coupled between the second input terminal and the load. A frequency of a first current flowing through the first winding is increased by the second pulsed voltage applied to the second winding. | 10-23-2014 |
20100228089 | Endoscopic Light Source - A light source assembly includes multiple light emitters having output that are focused and mixed onto a optical fiber leading to an endoscope or other device. The emitters can be LEDs or solid state lasers that emit different colors. A driver circuit controls the relative output intensities of the light emitters so as to produce a desired light spectrum. A driver circuit includes a buck topology connected to a controller that provides current mode control. Pulse width modulation of the buck current is provided by a semiconductor switch across a solid state laser. A second order filter, formed by the an external inductor and the output capacitance of the buck topology, minimizes AC current ripple to the laser. | 09-09-2010 |