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San Jose, CA, United States

Fairchild Semiconductor International, Inc. is an American semiconductor company based in San Jose, California. Originally founded in 1957 as a division of Fairchild Camera and Instrument, it became a pioneer in the manufacturing of transistors and of integrated circuits. Schlumberger bought the firm in 1979 and sold it to National Semiconductor in 1987; Fairchild was spun off as an independent company again in 1997.The company has locations in the United States of America at San Jose, California; South Portland, Maine; West Jordan, Utah; Mountaintop, Pennsylvania. Outside the U.S. it operates locations in Singapore; Bucheon, South Korea; Penang, Malaysia; Suzhou, China; and Cebu, Philippines; among others. A design center has been launchedTemplate:By whom? in Pune, India. Wikipedia.


Patent
Fairchild Semiconductor | Date: 2015-06-09

The present disclosure describes full bridge power supply systems and control methods. In at least one embodiment, the full bridge power supply system may be driven utilizing a two-phase continuous conduction switching mode to control the inductor current. In another embodiment, the full bridge power supply system may be driven utilizing variably-configured three-phase continuous conduction modes to control the inductor current when an input voltage is within a window value to the output voltage. In another embodiment, the full bridge power supply may be driven using a four-phase discontinuous conduction switching mode to control the inductor current when a load current is below a current lower threshold.


Exemplary power semiconductor devices with features providing increased breakdown voltage and other benefits are disclosed.


Patent
Fairchild Semiconductor | Date: 2015-01-15

The power supply device includes a power switch, a rectification diode which rectifies a supplied current in accordance with a switching operation of the power switch to generate an output current, and a switch control circuit which averages a detected sensing voltage corresponding to a sensing voltage which follows a current which flows through the power switch to generate an output current estimating voltage corresponding to the output current.


Patent
Fairchild Semiconductor | Date: 2015-01-16

A primary-side regulation (PSR) power supply device according to the invention includes: a power switch; an auxiliary wiring from which an auxiliary voltage that depends on an output voltage is generated during a turn-off period of the power switch and being provided in a primary side; a clamping circuit clamping a voltage corresponding to the auxiliary voltage to a predetermined voltage; a voltage follower decreasing the sense voltage according to a decrease of the auxiliary voltage; and a switch control circuit controlling a switching operation of the power switch by using the sense voltage.


Patent
Fairchild Semiconductor | Date: 2015-06-25

In one general aspect, a power rectifier device can include a drift layer including silicon carbide of n-type conductivity, and a Schottky electrode disposed on the drift layer where the Schottky electrode and a surface of the drift layer can provide a Schottky contact. The power rectifier device can also include an array of p-type regions disposed underneath the Schottky electrode.

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