Company Filing History:

9 out of 236

Microsemi Corporation

patents

3 out of 29,256

Texas Instruments Corporation

Microsemi Corp-analog Mixed Signal Group, Ltd.

patents

Years Active: 1995-2013

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8547033 - LED string driver with power factor corrector and current governor (2013-10-01),

2. 7965046 - Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system (2011-06-21),

3. 7906943 - Boost converter with adaptive coil peak current (2011-03-15),

4. 7868603 - Method and apparatus to compensate for supply voltage variations in a PWM-based voltage regulator (2011-01-11),

5. 7646152 - Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system (2010-01-12),

6. 7414371 - Voltage regulation loop with variable gain control for inverter circuit (2008-08-19),

7. 7161309 - Protecting a cold cathode fluorescent lamp from a large transient current when voltage supply transitions from a low to a high voltage (2007-01-09),

8. 7112929 - Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system (2006-09-26),

9. 6803825 - Pseudo-differential transimpedance amplifier (2004-10-12),

10. 6784750 - Transimpedance amplifier with selective DC compensation (2004-08-31),

11. 6674595 - Controlled impedance amplifiers (2004-01-06),

12. 6466388 - Overshoot control for voltage source/impedanced based write coil driver (2002-10-15),

13. 6388476 - Self-switched cascode write driver (2002-05-14),

14. 5386328 - Current mirror based write driver (1995-01-31),

Title: Chii-Fa Chiou: Innovator in Solid State Lighting Technology

Introduction

Chii-Fa Chiou is a prominent inventor based in Lake Forest, California, known for his significant contributions to solid state lighting technology. With a total of 14 patents to his name, Chiou has made remarkable advancements in the field of LED technology, particularly in driver circuits and power factor correction.

Latest Patents

Chiou's latest patents include an innovative LED string driver with a power factor corrector and current governor. This solid state lighting controller is designed for use with a single stage power factor correction switched mode power supply, a light emitting diode (LED) string, and a current sense element. The controller features a current governor that limits current flow through the LED string based on a current limit reference. Additionally, the feedback circuit includes an error amplifier that adjusts the power factor correction based on the difference between the sensed current and a target current signal. Another notable patent is the full-bridge and half-bridge compatible driver timing schedule for a direct drive backlight system. This driver circuit flexibly operates either a half-bridge or a full-bridge switching network without requiring modifications or additional components, utilizing a zero-voltage switching technique for optimal performance.

Career Highlights

Throughout his career, Chiou has worked with leading companies in the technology sector, including Microsemi Corporation and Texas Instruments Corporation. His experience in these organizations has allowed him to develop and refine his expertise in solid state lighting and driver technologies.

Collaborations

Chiou has collaborated with notable professionals in the field, including Yuji Isobe and David K Lacombe. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Chii-Fa Chiou's work in solid state lighting technology has significantly impacted the industry, showcasing his expertise and innovative spirit. His contributions continue to influence the development of efficient lighting solutions.

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