Electric power conversion systems – Current conversion – Integrated circuit
Patent
1997-06-30
1999-06-22
Wong, Peter S.
Electric power conversion systems
Current conversion
Integrated circuit
363146, 361420, 361761, H02M 114
Patent
active
059148730
ABSTRACT:
The present invention provides a relief to the low voltage, high current spiral trend being seen in the microprocessor industry. A microprocessor module is designed to receive a voltage V2, which is substantially higher than a logic gate utilization voltage V3. V2 is supplied at a current rating of I2 to a plurality of within-module voltage converters, designated as 220a, 220n, which directly distribute voltage V3 and the appropriate current portion I3 to the respective logic gates 210. Preferably, voltage V2 is substantially greater in magnitude than voltage V3, typically V2:V3 being at least 5:1 but preferably 40:1 to as much as 100:1. By example, V2=50 vdc, 12=3 amps and V3=1.0 vdc would satisfy the ratio considerations. The microprocessor loads serviced by the present invention constitute millions of logic gates requiring low voltages ranging from 0.75 Vdc to 1.5 Vdc. Other microprocessor loads, such as cache, can be powered with flip chip technology using the technique of the present invention. A selected number of microprocessor logic gates, designated as numeral 210, are powered through electrical interconnections 205 (bumps), from respective voltage converters 220a . . . 220n. Each voltage converter includes power conversion components, namely a pre-regulator pulse width modulator controller circuit 223, a thin film transformer 221, and output voltage regulator circuit 222 embedded in deep wells of substrate 230.
REFERENCES:
patent: 5161098 (1992-11-01), Balakrishnan
patent: 5384691 (1995-01-01), Neugebauer et al.
patent: 5479115 (1995-12-01), Ueda et al.
patent: 5608617 (1997-03-01), Morrison et al.
Advanced Micro Devices
Patel Rajnikant B.
Wong Peter S.
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