Semiconductor integrated circuit and method of controlling...

Details Semiconductor integrated circuit and method of controlling... Semiconductor integrated circuit and method of controlling...

2008-09-08

2011-12-13

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

C327S538000, C327S540000, C327S589000

Reexamination Certificate

active

08076912

ABSTRACT:
A first pump circuit generates a first voltage for decreasing the distance between primary electrodes. The first voltage is limited to a predetermined limit by a first limiter circuit. A second pump circuit generates a second voltage for keeping the distance between the primary electrodes constant. A third pump circuit generates the second voltage and has a supplying capacity smaller than the first one. The second voltage is limited by second and third limiter circuits. A ripple capacitor is charged up to the second voltage by the second pump circuit and the second limiter circuit within a period of time the first voltage is being generated. When a supplying voltage of the first pump circuit reaches to the first voltage, and a deformation stops, the second voltage is supplied by the third pump circuit and the third limiter circuit instead of the second pump circuit and the second limiter circuit.

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