Thermal stress reduction in IC power transistors

Details Thermal stress reduction in IC power transistors Thermal stress reduction in IC power transistors

1979-07-26

1981-06-30

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330289, 330307, 357 28, H03F 326

Patent

active

042765161

ABSTRACT:
In an integrated circuit class B audio output device the transistors are fabricated as plural parallel connected sections. The two output transistors have their sections interdigitated so that adjacent sections are not turned on simultaneously. This leads to substantial improvements in thermal peaks within the transistors and to reduced thermal gradients across the transistors.

REFERENCES:
patent: 3631357 (1971-12-01), Hadley
patent: 3729660 (1973-04-01), Maidique

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