Stabilized DC power supply circuit having a current limiting...

Details Stabilized DC power supply circuit having a current limiting... Stabilized DC power supply circuit having a current limiting...

2006-05-01

2008-07-29

Sterrett, Jeffrey L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S279000, C323S907000

Reexamination Certificate

active

07405547

ABSTRACT:
A stabilized DC power supply circuit of the present invention includes an output current limiting circuit for limiting an output current of an output transistor, and a correction circuit for correcting variation of restriction in the output current caused by variation in a current amplification factor of the output transistor. The correction circuit includes a correcting transistor that is manufactured in the same manufacturing process as the output transistor and formed so as to have the same tendency of manufacturing process variation in current amplification factor etc. as that of the output transistor.

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patent: 2000-270469 (2000-09-01), None

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