GB1151691A - Improvements in or relating to Electrical Circuits - Google Patents
Improvements in or relating to Electrical CircuitsInfo
- Publication number
- GB1151691A GB1151691A GB107465A GB107465A GB1151691A GB 1151691 A GB1151691 A GB 1151691A GB 107465 A GB107465 A GB 107465A GB 107465 A GB107465 A GB 107465A GB 1151691 A GB1151691 A GB 1151691A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cycle
- detector
- during
- jan
- charges
- 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
Abstract
1,151,691. Temperature alarm systems. GRAVINER (COLNBROOK) Ltd. 5 Jan., 1966 [9 Jan., 1965], No. 1074/65. Addition to 953,166. Heading G4N. A temperature alarm system as described in Specification 953,166 in which a detector element is charged during one half-cycle and is discharged through a controlled rectifier during the other half-cycle is modified by connecting the detector and rectifier in parallel across a common transformer output winding. During one half-cycle detector FW charges through diode D1 and capacitor C2 charges through diode D2 to hold the controlled rectifier SCR cut-off, during the other half-cycle, the detector discharge current, supplemented by the transformer secondary current flows through resistor R2 and, when a critical temperature is exceeded, is sufficient to switch on SCR and actuate relay RLA.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR864376A FR1291979A (en) | 1961-06-09 | 1961-06-09 | Improvements relating to temperature detectors and the electrical circuits used with them |
GB107465A GB1151691A (en) | 1965-01-09 | 1965-01-09 | Improvements in or relating to Electrical Circuits |
FR45272A FR92505E (en) | 1960-06-09 | 1966-01-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB107465A GB1151691A (en) | 1965-01-09 | 1965-01-09 | Improvements in or relating to Electrical Circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1151691A true GB1151691A (en) | 1969-05-14 |
Family
ID=9715728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB107465A Expired GB1151691A (en) | 1960-06-09 | 1965-01-09 | Improvements in or relating to Electrical Circuits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1151691A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4628301A (en) * | 1983-11-04 | 1986-12-09 | Graviner Limited | Electrical circuit arrangements |
-
1965
- 1965-01-09 GB GB107465A patent/GB1151691A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4628301A (en) * | 1983-11-04 | 1986-12-09 | Graviner Limited | Electrical circuit arrangements |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE | Patent expired |