Title:
可変速度制御装置
Document Type and Number:
Japanese Patent JP4206434
Kind Code:
B2
Abstract:
A motor control circuit (10) for a power tool includes a function switch (39) which has a first battery contact (40), a speed control contact (41), a bypass contact (42) and, a second battery contact (44) connected in that order in a line. The function switch (39) also has a movable contact (38) which sequentially connects the first battery contact (40) to the bypass contact (42), the speed control contact (41) to the second battery contact (44), and the bypass contact (42) to the second battery contact (44). A solid state switch (22) has conduction path connecting the speed control contact (41) to a motor terminal (32) wherein the conduction path is controlled in response to an oscillator signal.
More Like This:
| JPS6423779 | MOTOR SWITCHGEAR |
| JPS5529201 | DC MOTOR CONTROL CIRCUIT |
Inventors:
Jackson Henry Smith
Michael thomas little
Michael thomas little
Application Number:
JP12693399A
Publication Date:
January 14, 2009
Filing Date:
May 07, 1999
Export Citation:
Assignee:
Tyco Electronics Logistics AG
International Classes:
H02P1/22; H02P7/29; H01H9/06; H02P3/08; H01H9/52
Domestic Patent References:
| JP1155229U |
Attorney, Agent or Firm:
Tyco Electronics Amplifier Co., Ltd.