Method and apparatus for regulation of power dissipation

Details Method and apparatus for regulation of power dissipation Method and apparatus for regulation of power dissipation

1994-05-16

1998-08-25

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

External effect

Temperature

327115, 327116, 327 99, 327147, 327156, 331176, H03L 102, H03L 700, H03B 504

Patent

active

057986673

ABSTRACT:
The clock rate for a device is controlled through the use of integrated circuits which respond to the temperature of the device. Circuitry is added to the integrated circuit device being controlled which changes the clock rate of the device as the device temperature changes. The device clock is thus regulating by the temperature of the device. The way in which the regulation is implemented can be varied, from slowing an internally generated clock rate, or by digitally scaling an external clock input. Synchronous scaling is also provided, such that devices which are connected external to the CPU can still be clocked at the same external rate, but CPU transactions within the CPU may occur at a different rate depending on the CPU's measured temperature. This invention also provides the ability to selectively reduce or stop certain areas of an integrated circuit relative to pending operations or instructions being executed.

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