GB1105874A - Control circuit - Google Patents
Control circuitInfo
- Publication number
- GB1105874A GB1105874A GB1388465A GB1388465A GB1105874A GB 1105874 A GB1105874 A GB 1105874A GB 1388465 A GB1388465 A GB 1388465A GB 1388465 A GB1388465 A GB 1388465A GB 1105874 A GB1105874 A GB 1105874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- changing
- bias
- potentiometer
- control circuit
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1472—Control of position or direction using feedback using an analogue comparing device with potentiometer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Position Or Direction (AREA)
- Control Of Direct Current Motors (AREA)
- Feedback Control In General (AREA)
Abstract
1,105,874. Correspondence control systems. COCHRAN & CO. ANNAN, Ltd. March 31, 1966 [April 1, 1965], No.13884/65. Heading G1N. In a correspondence control system including a control potentiometer RV1 and a feedback potentiometer RV2, transistors VT1, VT2 are connected so that, when the slider of RV1 is moved, the base of VT2 and the emitter of VT1 are positively (or negatively) biased. If the bias is positive VT1 conducts and relay RH is actuated through transistor VT3, while a negative bias causes VT2 and VT4 to conduct sufficiently to actuate relay RL. The motor 1 is thus driven in the appropriate direction to rebalance the system. The sensitivity of the system in either or both directions may be varied by changing the value of R4 or R6, or by changing the forward bias on VT3 or VT4 to change the standing current through the relay coils.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1388465A GB1105874A (en) | 1965-04-01 | 1965-04-01 | Control circuit |
| DE19661538391 DE1538391A1 (en) | 1965-04-01 | 1966-03-31 | Control circuit for a servomotor controllable by a relay |
| NL6604310A NL6604310A (en) | 1965-04-01 | 1966-03-31 | |
| BE678882D BE678882A (en) | 1965-04-01 | 1966-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1388465A GB1105874A (en) | 1965-04-01 | 1965-04-01 | Control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1105874A true GB1105874A (en) | 1968-03-13 |
Family
ID=10031108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1388465A Expired GB1105874A (en) | 1965-04-01 | 1965-04-01 | Control circuit |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE678882A (en) |
| DE (1) | DE1538391A1 (en) |
| GB (1) | GB1105874A (en) |
| NL (1) | NL6604310A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623780A1 (en) * | 1986-07-15 | 1988-01-21 | Centra Buerkle Gmbh & Co | ACTUATOR |
-
1965
- 1965-04-01 GB GB1388465A patent/GB1105874A/en not_active Expired
-
1966
- 1966-03-31 DE DE19661538391 patent/DE1538391A1/en active Pending
- 1966-03-31 NL NL6604310A patent/NL6604310A/xx unknown
- 1966-04-01 BE BE678882D patent/BE678882A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1538391A1 (en) | 1969-06-19 |
| NL6604310A (en) | 1966-10-03 |
| DE1538391B2 (en) | 1970-12-10 |
| BE678882A (en) | 1966-09-16 |
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