JPS5559514A - Ac constant current circuit - Google Patents
Ac constant current circuitInfo
- Publication number
- JPS5559514A JPS5559514A JP13290178A JP13290178A JPS5559514A JP S5559514 A JPS5559514 A JP S5559514A JP 13290178 A JP13290178 A JP 13290178A JP 13290178 A JP13290178 A JP 13290178A JP S5559514 A JPS5559514 A JP S5559514A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching
- high frequency
- load current
- load
- 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.)
- Pending
Links
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To increase the response velocity as well as to reduce greatly the distortion of the current waveform with a compact and light-weight structure by securing a constitution in that the load current is detected to give control to the switching circuit.
CONSTITUTION: The switching is given to AC power source 1 via switching circuit 2 and with the high frequency (10W20kHz). And the high frequency is drawn out through high frequency transformer 3, and the electric conduction is secured for load 5 via filter circuit 4. Then the load current is detected via load current detection circuit 6 for extraction to be applied to circuit 2, and the control is given to circuit 2 to obtain the constant current characteristics. In this case, if the switching frequency is high surficiently (not less than 5kHz), the ripple caused by the switching is small to cause no distortion of the current waveform.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13290178A JPS5559514A (en) | 1978-10-28 | 1978-10-28 | Ac constant current circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13290178A JPS5559514A (en) | 1978-10-28 | 1978-10-28 | Ac constant current circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5559514A true JPS5559514A (en) | 1980-05-06 |
Family
ID=15092186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13290178A Pending JPS5559514A (en) | 1978-10-28 | 1978-10-28 | Ac constant current circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5559514A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6194513A (en) * | 1984-10-16 | 1986-05-13 | 株式会社日立製作所 | Protective relay |
-
1978
- 1978-10-28 JP JP13290178A patent/JPS5559514A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6194513A (en) * | 1984-10-16 | 1986-05-13 | 株式会社日立製作所 | Protective relay |
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