Title:
高電圧発生装置およびＸ線画像診断装置
Document Type and Number:
Japanese Patent JP7053391
Kind Code:
B2
Abstract:
To increase the power efficiency under a wide range of load conditions.SOLUTION: A regenerative prevention circuit 7 including a diode Da and a capacitor Ca is provided on the side of a high frequency inverter 2 serving as a DC/AC conversion circuit of a smoothing capacitor Cdc between a DC power supply 1 and a DC terminal of the high frequency inverter 2. The regenerative prevention circuit 7 boosts the DC voltage input to the high frequency inverter 2 to a voltage higher than the voltage of the DC power supply. As a result, the regenerative time during which the energy of a resonance capacitor Cp2 is regenerated to the DC power supply 1 is reduced, such that the duty factor of the gate control signals VG1 to VG4 can be designed to be large, and the efficiency of the high voltage generator 100 can be improved.SELECTED DRAWING: Figure 1
Inventors:
Yuki Kawaguchi
Takae Shimada
Shotaro Shindo
Satoshi Hatsumi
Takae Shimada
Shotaro Shindo
Satoshi Hatsumi
Application Number:
JP2018129352A
Publication Date:
April 12, 2022
Filing Date:
July 06, 2018
Export Citation:
Assignee:
FUJIFILM Healthcare Co., Ltd.
International Classes:
H05G1/12; H05G1/32
Domestic Patent References:
| JP2004349149A | ||||
| JP11233286A | ||||
| JP11266582A | ||||
| JP10125493A | ||||
| JP3108298A |
Foreign References:
| WO2015004825A1 |
Attorney, Agent or Firm:
Sannozaka Patent Office