| Patent Number |
Title Of Patent |
Date Issued |
| 7898218 |
Power supply topologies with PWM frequency control |
March 1, 2011 |
| A power supply topology with pulse width modulation frequency control allows the use of an inductor with higher inductance in a converter. By controlling the switching frequency of the pulse width modulation signal, the inductor can achieve high efficiency during a light load condition |
| 7378896 |
Single pin for multiple functional control purposes |
May 27, 2008 |
| A method for using a single pin to support both power input and power control functions for an integrated circuit, wherein the integrated circuit is in communication with a system. The method includes receiving at the pin a power input signal from the system, generating a power contr |
| 7375472 |
Highly efficient driving of photoflash diodes using low and fixed voltage drop-out current sink |
May 20, 2008 |
| A circuit according to the present invention is used for driving a photoflash diode and comprises a current sink, a feedback circuit, and a DC-DC converter. The current sink is coupled to the photoflash diode for controlling the current through the photoflash diode. The feedback circ |
| 7331001 |
Test card for multiple functions testing |
February 12, 2008 |
| The present invention provides a test card for multiple functions testing. The test card includes a host of media devices, all of which reside on a single printed circuit board; and a selection device which selects each one of the host of media devices for testing. The test card can test |
