JPS54139024A - Transistor inverter - Google Patents
Transistor inverterInfo
- Publication number
- JPS54139024A JPS54139024A JP4655978A JP4655978A JPS54139024A JP S54139024 A JPS54139024 A JP S54139024A JP 4655978 A JP4655978 A JP 4655978A JP 4655978 A JP4655978 A JP 4655978A JP S54139024 A JPS54139024 A JP S54139024A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- current
- output
- main
- load current
- 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
- Inverter Devices (AREA)
Abstract
PURPOSE: To reduce the loss of a main transistor and to improve the efficiency of the transistor by detecting load current and increasing or decreasing the current to be applied to a base drive circuit of the main transistor in response to the load current.
CONSTITUTION: Load current is detected by a DC current transformer AD. The detected output from the transformer AD and output from a DC power supply ES are applied to a current control means VC and to a pulse transformer PT for driving the bases of main transistors Q1, Q2. Comparators COMa, b, c compare the output from the transformer AD with set voltages of voltage potentiometers VSa, b, c, respectively to sequentially close shorting means SWa, b, c, respectively to correspondingly increase or decrease the output voltage to thereby control the base currents of the main ransistors Q1, Q2. Thus, it can reduce the loss of the transistors so as to improve the efficiency thereof and to form the entire construction inexpensively.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4655978A JPS54139024A (en) | 1978-04-21 | 1978-04-21 | Transistor inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4655978A JPS54139024A (en) | 1978-04-21 | 1978-04-21 | Transistor inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54139024A true JPS54139024A (en) | 1979-10-29 |
Family
ID=12750675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4655978A Pending JPS54139024A (en) | 1978-04-21 | 1978-04-21 | Transistor inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54139024A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5996877A (en) * | 1982-11-22 | 1984-06-04 | Mitsubishi Electric Corp | Inverter circuit |
JPS6046779A (en) * | 1983-08-25 | 1985-03-13 | Mitsubishi Electric Corp | Inverter circuit |
US4569011A (en) * | 1983-11-14 | 1986-02-04 | Tandem Computers Incorporated | Constant current drive for switching power supply |
US4672524A (en) * | 1985-09-03 | 1987-06-09 | Hitachi, Ltd. | Overcurrent and overvoltage protected transistor inverter |
-
1978
- 1978-04-21 JP JP4655978A patent/JPS54139024A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5996877A (en) * | 1982-11-22 | 1984-06-04 | Mitsubishi Electric Corp | Inverter circuit |
JPS6046779A (en) * | 1983-08-25 | 1985-03-13 | Mitsubishi Electric Corp | Inverter circuit |
US4569011A (en) * | 1983-11-14 | 1986-02-04 | Tandem Computers Incorporated | Constant current drive for switching power supply |
US4672524A (en) * | 1985-09-03 | 1987-06-09 | Hitachi, Ltd. | Overcurrent and overvoltage protected transistor inverter |
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