SE8205638D0 - DEVICE FOR CONTROLING AC POWER LOADS - Google Patents
DEVICE FOR CONTROLING AC POWER LOADSInfo
- Publication number
- SE8205638D0 SE8205638D0 SE8205638A SE8205638A SE8205638D0 SE 8205638 D0 SE8205638 D0 SE 8205638D0 SE 8205638 A SE8205638 A SE 8205638A SE 8205638 A SE8205638 A SE 8205638A SE 8205638 D0 SE8205638 D0 SE 8205638D0
- Authority
- SE
- Sweden
- Prior art keywords
- comparator
- input
- saw tooth
- load
- potential
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
Landscapes
- Control Of Electrical Variables (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to an arrangement comprising a triac 3 with toothed circuits 9 for controlling the current through an AC current-powered load, preferably a projection lamp 4. The arrangement comprises a comparator 7, one input of which is connected to a grid-synchronous saw tooth generator 6 and the other input of which is connected to an open circuit reference voltage source 8, which has such voltage that the potential of the second input of the comparator 7 without any load other than the comparator 7 itself lies between but close to one of the extreme values of the saw tooth voltage. The reference voltage source 8 has a relatively large internal resistance, so that the potential at the second input of the comparator 7 can be adjusted by means of an external load to at least essentially the other extreme value of the saw tooth voltage. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8205638A SE430459B (en) | 1982-10-04 | 1982-10-04 | Arrangement comprising a triac with toothed circuits for controlling the current through an AC current-powered load, preferably a projection lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8205638A SE430459B (en) | 1982-10-04 | 1982-10-04 | Arrangement comprising a triac with toothed circuits for controlling the current through an AC current-powered load, preferably a projection lamp |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8205638D0 true SE8205638D0 (en) | 1982-10-04 |
SE8205638L SE8205638L (en) | 1983-11-14 |
SE430459B SE430459B (en) | 1983-11-14 |
Family
ID=20348075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8205638A SE430459B (en) | 1982-10-04 | 1982-10-04 | Arrangement comprising a triac with toothed circuits for controlling the current through an AC current-powered load, preferably a projection lamp |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE430459B (en) |
-
1982
- 1982-10-04 SE SE8205638A patent/SE430459B/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE8205638L (en) | 1983-11-14 |
SE430459B (en) | 1983-11-14 |
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