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Transistor-based filter for inhibiting load noise from entering a power supply

Patent ·
OSTI ID:1086693

A transistor-based filter for inhibiting load noise from entering a power supply is disclosed. The filter includes a first transistor having an emitter coupled to a power supply, a collector coupled to a load, and a base. The filter also includes a first capacitor coupled between the base of the first transistor and a ground terminal. The filter further includes an impedance coupled between the base and a node between the collector and the load, or a second transistor and second capacitor. The impedance can be a resistor or an inductor.

Research Organization:
PNNL (Pacific Northwest National Laboratory (PNNL), Richland, WA (United States))
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
8,476,969
Application Number:
13/397,928
OSTI ID:
1086693
Country of Publication:
United States
Language:
English

References (3)

A Current Controller for Tunable Near Infrared Diode Laser journal January 2000
Instrumentation for the stable operation of laser diodes journal August 1990
A simple scanning semiconductor diode laser source and its application in wavelength modulation spectroscopy around 825nm journal March 2007

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