Title:
HIGH VOLTAGE AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2022/264716
Kind Code:
A1
Abstract:
Provided is a high voltage amplifier that allows shoot-through currents to be held stably without individual adjustment. A high voltage amplifier comprising: an input circuit for amplifying an input signal; a positive-side level shift circuit connected to the input circuit; a negative-side level shift circuit connected to the input circuit; a high voltage output circuit including a positive-side output circuit for amplifying a signal from the positive-side level shift circuit and a negative-side output circuit for amplifying a signal from the negative-side level shift circuit; and a feedback circuit for feeding an output signal from the high voltage output circuit back to the input signal. The high voltage amplifier is further provided with a detection circuit for detecting currents through the positive-side output circuit and the negative-side output circuit, and an offset adjusting circuit for increasing an offset amount of the negative-side level shift circuit on the negative side when the current through the positive-side output circuit has increased, and for increasing an offset amount of the positive-side level shift circuit on the positive side when the current through the negative-side output circuit has increased.
Inventors:
KUDO RYOHEI (JP)
NAGASHIMA TOMOHARU (JP)
KANAI HISAAKI (JP)
LI WEN (JP)
MURAKAMI SHINICHI (JP)
ISHIGAKI NAOYA (JP)
NAGASHIMA TOMOHARU (JP)
KANAI HISAAKI (JP)
LI WEN (JP)
MURAKAMI SHINICHI (JP)
ISHIGAKI NAOYA (JP)
Application Number:
PCT/JP2022/019947
Publication Date:
December 22, 2022
Filing Date:
May 11, 2022
Export Citation:
Assignee:
HITACHI HIGH TECH CORP (JP)
International Classes:
H03F1/32; H03F1/52; H03F3/30
Foreign References:
| JP2002368552A | 2002-12-20 | |||
| US4752745A | 1988-06-21 | |||
| JPH09321546A | 1997-12-12 |
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (JP)
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