JPS4858330A - - Google Patents
Info
- Publication number
- JPS4858330A JPS4858330A JP47112193A JP11219372A JPS4858330A JP S4858330 A JPS4858330 A JP S4858330A JP 47112193 A JP47112193 A JP 47112193A JP 11219372 A JP11219372 A JP 11219372A JP S4858330 A JPS4858330 A JP S4858330A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
- A61G2203/14—Joysticks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Control Of Direct Current Motors (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5220271A GB1413476A (en) | 1971-11-10 | 1971-11-10 | Speed control for dc motors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4858330A true JPS4858330A (it) | 1973-08-16 |
| JPS529806B2 JPS529806B2 (it) | 1977-03-18 |
Family
ID=10463018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47112193A Expired JPS529806B2 (it) | 1971-11-10 | 1972-11-10 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3854079A (it) |
| JP (1) | JPS529806B2 (it) |
| CA (1) | CA990782A (it) |
| DE (1) | DE2255015C3 (it) |
| ES (2) | ES408658A1 (it) |
| FR (1) | FR2160163A5 (it) |
| GB (1) | GB1413476A (it) |
| IT (1) | IT973432B (it) |
| ZA (1) | ZA727726B (it) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2617883A1 (de) * | 1976-04-23 | 1977-11-10 | Bosch Gmbh Robert | Impulssteuerschaltung fuer elektrische verbraucher |
| US4233549A (en) * | 1978-12-08 | 1980-11-11 | Baxter Travenol Laboratories, Inc. | Speed and torque control for fractional horsepower motors |
| US4325011A (en) * | 1980-01-31 | 1982-04-13 | Peterson Donovan F | Pulse width modulation control circuit |
| EP0076039A1 (en) * | 1981-08-31 | 1983-04-06 | Capax Electrische Apparatenfabriek B.V. | Speed control for power tools having a DC motor |
| US5526460A (en) * | 1994-04-25 | 1996-06-11 | Black & Decker Inc. | Impact wrench having speed control circuit |
| GB0128844D0 (en) * | 2001-12-01 | 2002-01-23 | Westland Helicopters | Power control device |
| WO2020151006A1 (zh) * | 2019-01-25 | 2020-07-30 | 深圳和而泰智能控制股份有限公司 | 电机转速控制装置、电机和食品加工设备 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1341960A (fr) * | 1961-12-29 | 1963-11-02 | Philips Nv | Multivibrateur astable |
| GB1196244A (en) * | 1966-07-26 | 1970-06-24 | Cableform Ltd | Improvements relating to Electrically Propelled Invalid Carriages |
| BE696125A (it) * | 1967-03-24 | 1967-09-24 | ||
| US3617845A (en) * | 1970-04-27 | 1971-11-02 | Applied Motors Inc | Energy-conserving control circuit using power transistors |
| JPS5141248B1 (it) * | 1970-12-26 | 1976-11-09 |
-
1971
- 1971-11-10 GB GB5220271A patent/GB1413476A/en not_active Expired
-
1972
- 1972-10-31 CA CA155,270A patent/CA990782A/en not_active Expired
- 1972-10-31 ZA ZA727726A patent/ZA727726B/xx unknown
- 1972-11-08 IT IT53870/72A patent/IT973432B/it active
- 1972-11-08 ES ES408658A patent/ES408658A1/es not_active Expired
- 1972-11-10 FR FR7239887A patent/FR2160163A5/fr not_active Expired
- 1972-11-10 JP JP47112193A patent/JPS529806B2/ja not_active Expired
- 1972-11-10 DE DE2255015A patent/DE2255015C3/de not_active Expired
- 1972-11-10 US US00305507A patent/US3854079A/en not_active Expired - Lifetime
-
1975
- 1975-03-24 ES ES435937A patent/ES435937A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1413476A (en) | 1975-11-12 |
| ES408658A1 (es) | 1976-03-01 |
| US3854079A (en) | 1974-12-10 |
| DE2255015B2 (de) | 1979-01-25 |
| FR2160163A5 (it) | 1973-06-22 |
| ES435937A1 (es) | 1976-12-16 |
| CA990782A (en) | 1976-06-08 |
| JPS529806B2 (it) | 1977-03-18 |
| IT973432B (it) | 1974-06-10 |
| DE2255015A1 (de) | 1973-05-17 |
| ZA727726B (en) | 1973-06-27 |
| DE2255015C3 (de) | 1979-09-13 |