GB1273086A - Device for the controlled actuation of the basket of a washing machine - Google Patents
Device for the controlled actuation of the basket of a washing machineInfo
- Publication number
- GB1273086A GB1273086A GB23267/70A GB2326770A GB1273086A GB 1273086 A GB1273086 A GB 1273086A GB 23267/70 A GB23267/70 A GB 23267/70A GB 2326770 A GB2326770 A GB 2326770A GB 1273086 A GB1273086 A GB 1273086A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- motor
- speed
- conductive
- mains
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- 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
- H02P7/292—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 static converters, e.g. AC to DC
- H02P7/293—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 static converters, e.g. AC to DC using phase control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/907—Specific control circuit element or device
- Y10S388/917—Thyristor or scr
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Direct Current Motors (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Abstract
1,273,086. Rectifying. INDUSTRIE A. ZANUSSI S.p.A. 13 May, 1970 [17 May, 1969], No. 23267/70. Heading H2F. [Also in Division G3] A washing machine is driven by a D.C. motor 2 which is supplied through a constant-current transformer 18 and a bridge including controlled rectifiers 11, 12. When the speed of the motor is below a predetermined value, a transistor 48 is cut-off at the instants when the full-wave rectified voltage derived from a mains-supplied network 24-27 reaches zero, the transistor becoming conductive immediately after. A transistor 45 is rendered conductive each time the transistor 48 is cut-off, whereby rectifier 39 operates to trigger the rectifiers 11, 12. The motor thus receives a continuous train of halfwave pulses having twice the mains frequency and in phase with the mains voltage. A reference voltage is developed across a capacitor 40 and is compared with a signal representing the motor armature voltage derived from bridgeterminals 57, 61. If the speed exceeds a predetermined value set by selector switch 60, transistor 52 becomes less conductive and Zener diode 51 breaks down. Transistor 48 is then rendered continuously conductive to cutoff the transistor 45 and prevent energization of the motor until the speed is reduced to the desired value, entire half-waves of the motorcurrent being suppressed rather than portions thereof. Steep-fronted pulses, which cause R.F. noise, are thus avoided. The components 39, 45 may be replaced by a multivibrator and amplifier, and the motor speed may be sensed by a tachometer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1694869 | 1969-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1273086A true GB1273086A (en) | 1972-05-03 |
Family
ID=11149577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23267/70A Expired GB1273086A (en) | 1969-05-17 | 1970-05-13 | Device for the controlled actuation of the basket of a washing machine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3670226A (en) |
| AT (1) | AT304420B (en) |
| DE (1) | DE2023715B2 (en) |
| ES (1) | ES379784A1 (en) |
| FR (1) | FR2047821A5 (en) |
| GB (1) | GB1273086A (en) |
| NL (1) | NL7007063A (en) |
| SE (1) | SE367524B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758844A (en) * | 1972-04-10 | 1973-09-11 | Waynco | Control circuit for load having measureable coefficient of resistance |
| US3889848A (en) * | 1972-07-25 | 1975-06-17 | Ronald J Ricciardi | Automatically controlled weigh feeding apparatus |
| IT971564B (en) * | 1972-12-05 | 1974-05-10 | S O L E Spa Soc Opitergina Lav | SPEED REGULATOR FOR MOTORS IN PARTICULAR FOR UNIDIRECTIONAL CUR RENT MOTORS USED IN WASHING MACHINES |
| US3962615A (en) * | 1974-03-20 | 1976-06-08 | Spangler Searle T | Multiple mode variable speed motor control circuit |
| FR2296721A1 (en) * | 1974-12-30 | 1976-07-30 | Carpano & Pons | SAFETY POWER SUPPLY FOR DRUM DRIVE OF WASHING MACHINES |
| US4118769A (en) * | 1977-06-20 | 1978-10-03 | Ncr Corporation | Full wave demand controlled preregulating supply |
| JPS5953673B2 (en) * | 1977-08-09 | 1984-12-26 | ソニー株式会社 | power circuit |
| CH640090A5 (en) * | 1980-11-14 | 1983-12-15 | Mefina Sa | CONTROL DEVICE FOR A DIRECT CURRENT MOTOR. |
| FR2687026B1 (en) * | 1992-01-31 | 1994-04-08 | Valeo Thermique Habitacle | ELECTROMECHANICAL DEVICE WITH A VARIABLE RESISTIVE CIRCUIT FOR CONTROLLING A LOAD, ESPECIALLY AN ELECTRIC MOTOR. |
| FR2746981B1 (en) * | 1996-03-29 | 1998-06-19 | Sgs Thomson Microelectronics | ORDERING A MIXED BRIDGE AT ZERO VOLTAGE |
| US6312150B1 (en) * | 1997-04-25 | 2001-11-06 | Sunbeam Products, Inc. | Speed control for a mixer for providing an incremental power boost |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US593050A (en) * | 1897-11-02 | Alternating-current regulator | ||
| US2814012A (en) * | 1956-06-21 | 1957-11-19 | Elston H Swanson | D. c. motor control systems |
| US3329887A (en) * | 1963-03-04 | 1967-07-04 | Barber Colman | Burst length proportioning system for controlling electric power |
| US3309602A (en) * | 1963-07-18 | 1967-03-14 | Sperry Rand Corp | Current controllers |
| US3307094A (en) * | 1963-12-30 | 1967-02-28 | Ogle Hugh Malcolm | A.-c. switch speed control system for a.-c. motors |
| US3293889A (en) * | 1964-08-24 | 1966-12-27 | Whirlpool Co | Control for continually varying tumble speed |
| US3335291A (en) * | 1965-03-11 | 1967-08-08 | Gen Electric | Zero voltage switching circuit using gate controlled conducting devices |
| US3369381A (en) * | 1965-09-13 | 1968-02-20 | Whirlpool Co | Electronic control circuit for direct drive automatic |
| US3475670A (en) * | 1966-09-12 | 1969-10-28 | Scm Corp | Control circuit |
| US3460017A (en) * | 1967-01-16 | 1969-08-05 | Reliance Electric & Eng Co | Solid state trigger for scr |
| US3526791A (en) * | 1968-01-19 | 1970-09-01 | Hewlett Packard Co | Low noise controller |
-
1969
- 1969-09-10 AT AT860269A patent/AT304420B/en not_active IP Right Cessation
-
1970
- 1970-05-13 GB GB23267/70A patent/GB1273086A/en not_active Expired
- 1970-05-14 SE SE06631/70A patent/SE367524B/xx unknown
- 1970-05-14 US US37104A patent/US3670226A/en not_active Expired - Lifetime
- 1970-05-14 DE DE19702023715 patent/DE2023715B2/en active Pending
- 1970-05-15 NL NL7007063A patent/NL7007063A/xx unknown
- 1970-05-15 FR FR7017802A patent/FR2047821A5/fr not_active Expired
- 1970-05-18 ES ES379784A patent/ES379784A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2023715A1 (en) | 1970-11-19 |
| US3670226A (en) | 1972-06-13 |
| FR2047821A5 (en) | 1971-03-12 |
| NL7007063A (en) | 1970-11-19 |
| SE367524B (en) | 1974-05-27 |
| AT304420B (en) | 1973-01-10 |
| ES379784A1 (en) | 1972-08-16 |
| DE2023715B2 (en) | 1976-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |