GB2179212B - Bimorph drive circuit - Google Patents

Bimorph drive circuit

Info

Publication number: GB2179212B
Authority: GB; United Kingdom
Prior art keywords: drive circuit; bimorph drive; bimorph; circuit; drive
Prior art date: 1985-08-13
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

Application number

GB8520277A

Other versions

GB2179212A (en

GB8520277D0 (en

Inventor

Roger Wakefield Fenton

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

BAE Systems Electronics Ltd

Original Assignee

Marconi Co Ltd

Priority date (The priority date 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 date listed.)

1985-08-13

Filing date

1985-08-13

Publication date

1989-05-10

1985-08-13 Application filed by Marconi Co Ltd filed Critical Marconi Co Ltd

1985-08-13 Priority to GB8520277A priority Critical patent/GB2179212B/en

1985-09-18 Publication of GB8520277D0 publication Critical patent/GB8520277D0/en

1987-02-25 Publication of GB2179212A publication Critical patent/GB2179212A/en

1989-05-10 Application granted granted Critical

1989-05-10 Publication of GB2179212B publication Critical patent/GB2179212B/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
- G11B5/592—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits

GB8520277A 1985-08-13 1985-08-13 Bimorph drive circuit Expired GB2179212B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB8520277A GB2179212B (en)	1985-08-13	1985-08-13	Bimorph drive circuit

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB8520277A GB2179212B (en)	1985-08-13	1985-08-13	Bimorph drive circuit

Publications (3)

Publication Number	Publication Date
GB8520277D0 GB8520277D0 (en)	1985-09-18
GB2179212A GB2179212A (en)	1987-02-25
GB2179212B true GB2179212B (en)	1989-05-10

Family

ID=10583715

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8520277A Expired GB2179212B (en)	1985-08-13	1985-08-13	Bimorph drive circuit

Country Status (1)

Country	Link
GB (1)	GB2179212B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2060674C (en) *	1991-02-08	1996-10-01	Masahiro Tagawa	Driving apparatus and a recording and/or reproducing apparatus using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3740571A (en) *	1972-04-18	1973-06-19	Amp Inc	High voltage dual isolated output tracking power supply
GB1479033A (en) *	1973-08-14	1977-07-06	Masuda S	Electrostatic precipitating apparatus
US4099211A (en) *	1976-09-13	1978-07-04	Ampex Corporation	Positionable transducing mounting structure and driving system therefor

1985
- 1985-08-13 GB GB8520277A patent/GB2179212B/en not_active Expired

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3740571A (en) *	1972-04-18	1973-06-19	Amp Inc	High voltage dual isolated output tracking power supply
GB1479033A (en) *	1973-08-14	1977-07-06	Masuda S	Electrostatic precipitating apparatus
US4099211A (en) *	1976-09-13	1978-07-04	Ampex Corporation	Positionable transducing mounting structure and driving system therefor
GB1589625A (en) *	1976-09-13	1981-05-13	Ampex	Positionable transducing mounting structure and driving system therefor

Also Published As

Publication number	Publication date
GB2179212A (en)	1987-02-25
GB8520277D0 (en)	1985-09-18

Publication	Publication Date	Title
GB8600655D0 (en)	1986-02-19	Electrical drive systems
EP0300755A3 (en)	1990-06-13	Drive circuit
GB8706979D0 (en)	1987-04-29	Drive circuit
GB8621645D0 (en)	1986-10-15	Electrical drive circuit
GB8616965D0 (en)	1986-08-20	Drive circuit
GB8621573D0 (en)	1986-10-15	Driving circuit
GB8629295D0 (en)	1987-01-14	Drive circuit
GB8607792D0 (en)	1986-04-30	Driving arrangement
GB2170872B (en)	1989-06-21	Drive mechanism
IL78900A0 (en)	1986-09-30	Proportional base drive circuit
GB8524998D0 (en)	1985-11-13	Motion board drive system
GB8512269D0 (en)	1985-06-19	Drive system
GB8613993D0 (en)	1986-07-16	Drive circuit
GB8618449D0 (en)	1986-09-03	Base drive circuit
GB8603430D0 (en)	1986-03-19	Drive mechanisms
GB8507580D0 (en)	1985-05-01	Drive mechanisms
GB2181212B (en)	1990-03-21	An oscillatory drive arrangement
GB2172936B (en)	1988-11-09	Fans
GB2179212B (en)	1989-05-10	Bimorph drive circuit
EP0219828A3 (en)	1989-06-21	Printer-head driving mechanism
GB8619833D0 (en)	1986-09-24	Drive arrangement
IL79361A0 (en)	1986-10-31	Drive device
GB8631005D0 (en)	1987-02-04	Drive circuitry
GB8610366D0 (en)	1986-06-04	Drive assembly
GB8522947D0 (en)	1985-10-23	Drive mechanism

Legal Events

Date	Code	Title	Description
1991-04-10	PCNP	Patent ceased through non-payment of renewal fee