David A. Smith

Person

Kowloon, HK

People

Patents Grantslast 30 patents

Information Patent Grant
Integrated circuit mounting structure including a switching power s...
- Patent number 6,469,895
- Issue date Oct 22, 2002
- Astec International Limited
- David Anthony Smith
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Integrated circuit mounting structure including a switching power s...
- Patent number 5,694,297
- Issue date Dec 2, 1997
- Astec International Limited
- David Anthony Smith
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit for detecting negative output rails
- Patent number 5,568,372
- Issue date Oct 22, 1996
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Temperature share scheme
- Patent number 5,493,154
- Issue date Feb 20, 1996
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Heat sink and electromagnetic interference shield assembly
- Patent number 5,459,348
- Issue date Oct 17, 1995
- Astec International, Ltd.
- David A. Smith
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gate drive circuit
- Patent number 5,438,294
- Issue date Aug 1, 1995
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-resonant clamped flyback converter
- Patent number 5,430,633
- Issue date Jul 4, 1995
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converters with improved switching efficiency
- Patent number 5,410,467
- Issue date Apr 25, 1995
- Astec International Limited
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Zero voltage switching power converters
- Patent number 5,331,533
- Issue date Jul 19, 1994
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit for the fast turn off of a field effect transistor
- Patent number 5,313,109
- Issue date May 17, 1994
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Dual active clamp, zero voltage switching power converter
- Patent number 5,309,344
- Issue date May 3, 1994
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Efficient transistor drive circuit for electrical power converter c...
- Patent number 5,304,875
- Issue date Apr 19, 1994
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converter module
- Patent number D340907
- Issue date Nov 2, 1993
- Astec International, Ltd.
- David A. Smith
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Zero voltage switching power converter with secondary side regulation
- Patent number 5,206,800
- Issue date Apr 27, 1993
- Astec International, Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Linear programming circuit for adjustable output voltage power conv...
- Patent number 5,177,431
- Issue date Jan 5, 1993
- Astec International Ltd.
- David A. Smith
- G05 - CONTROLLING REGULATING
Information Patent Grant
Low profile transformer
- Patent number 5,175,525
- Issue date Dec 29, 1992
- Astec International, Ltd.
- David A. Smith
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Zero voltage switching power converter
- Patent number 5,173,846
- Issue date Dec 22, 1992
- Astec International Ltd.
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current sensing synchronous rectifier apparatus
- Patent number 5,097,403
- Issue date Mar 17, 1992
- Astec International Ltd.
- David A. Smith
- G01 - MEASURING TESTING
Information Patent Grant
Power factor improvement
- Patent number 5,001,620
- Issue date Mar 19, 1991
- Astec International Limited
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Efficient snubber for rectifier circuits
- Patent number 4,977,493
- Issue date Dec 11, 1990
- Astec International Limited
- David A. Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

David A. Smith

Person

Patents Grantslast 30 patents

Integrated circuit mounting structure including a switching power s...

Integrated circuit mounting structure including a switching power s...

Circuit for detecting negative output rails

Temperature share scheme

Heat sink and electromagnetic interference shield assembly

Gate drive circuit

Multi-resonant clamped flyback converter

Power converters with improved switching efficiency

Zero voltage switching power converters

Circuit for the fast turn off of a field effect transistor

Dual active clamp, zero voltage switching power converter

Efficient transistor drive circuit for electrical power converter c...

Power converter module

Zero voltage switching power converter with secondary side regulation

Linear programming circuit for adjustable output voltage power conv...

Low profile transformer

Zero voltage switching power converter

Current sensing synchronous rectifier apparatus

Power factor improvement

Efficient snubber for rectifier circuits