Title:
交流発電機のブレーキ装置
Document Type and Number:
Japanese Patent JP6715046
Kind Code:
B2
Abstract:
A brake device for an AC generator, whose speed can be flexibly controlled, and can function properly even when functions of the control unit are lost. The brake device has a triac (TR) that has a first terminal connected to one transmission line, and a second terminal connected to the other transmission line of the AC generator; first switching units (Q1, Q2) inserted in and connected to a current path, which is connected in parallel between the second terminal and a gate (TG) of the triac (TR); a second switching unit (Q3) which can switch between an ON-enabled state and an OFF-state of said first switching units (Q1, Q2), and when the first switching unit is the ON-enabled state by the second switching unit (Q3), if the absolute value of a line-to-line voltage exceeds the prescribed value, the first switching units turn on using the line-to-line voltage as a driving power source, and in accordance with the polarity of the line-to-line voltage, a trigger current flows in the gate (TG) through said current path, which turns on said triac (TR), and a short-circuit current flows in between the transmission lines.
Inventors:
Shoji Haneda
Application Number:
JP2016056581A
Publication Date:
July 01, 2020
Filing Date:
March 22, 2016
Export Citation:
Assignee:
ntn corporation
International Classes:
H02P9/00; H02P3/00
Domestic Patent References:
| JP2000199473A | ||||
| JP50012761B2 | ||||
| JP48041842B2 | ||||
| JP2008118807A | ||||
| JP8023700A |
Attorney, Agent or Firm:
Takashiro Kojima
Noriko Kawai
Noriko Kawai