JPH02111818U - - Google Patents
Info
- Publication number
- JPH02111818U JPH02111818U JP1898289U JP1898289U JPH02111818U JP H02111818 U JPH02111818 U JP H02111818U JP 1898289 U JP1898289 U JP 1898289U JP 1898289 U JP1898289 U JP 1898289U JP H02111818 U JPH02111818 U JP H02111818U
- Authority
- JP
- Japan
- Prior art keywords
- power transformer
- voltage
- switching circuit
- tap
- secondary winding
- 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
- 238000004804 winding Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Control Of Electrical Variables (AREA)
Description
第１図はこの考案に係る電源トランスの電圧切
換回路の実施例を示す回路図、第２図は従来の実
施例を示す回路図である。
主な符号の説明、１：電源トランス、２：１次
側巻線、３：２次側巻線、３ａ，３ｂ，３ｄ，３
ｅ：タツプ、３ｃ：センサータツプ、４：ダイオ
ード、５：コンデンサ、６：リレー、９：負荷、
１０，１１：切換器。
FIG. 1 is a circuit diagram showing an embodiment of a voltage switching circuit for a power transformer according to this invention, and FIG. 2 is a circuit diagram showing a conventional embodiment. Explanation of main symbols, 1: Power transformer, 2: Primary winding, 3: Secondary winding, 3a, 3b, 3d, 3
e: tap, 3c: sensor tap, 4: diode, 5: capacitor, 6: relay, 9: load,
10, 11: Switch.
Claims (1)
器の電源トランスの電圧切換回路において、 前記電源トランスの２次側巻線の電圧を検出す
る電圧検出回路と、この電圧検出回路の検出結果
に基づき電源トランスの２次側巻線のタツプを切
り替えるタツプ切換回路とで構成したことを特徴
とする電源トランスの電圧切換回路。[Claims for Utility Model Registration] In a voltage switching circuit for a power transformer of an electronic device that can be connected to commercial power sources with different voltages, a voltage detection circuit that detects the voltage of a secondary winding of the power transformer; 1. A voltage switching circuit for a power transformer, comprising a tap switching circuit that switches the tap of a secondary winding of the power transformer based on the detection result of the detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1898289U JPH02111818U (en) | 1989-02-22 | 1989-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1898289U JPH02111818U (en) | 1989-02-22 | 1989-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02111818U true JPH02111818U (en) | 1990-09-06 |
Family
ID=31234104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1898289U Pending JPH02111818U (en) | 1989-02-22 | 1989-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02111818U (en) |
-
1989
- 1989-02-22 JP JP1898289U patent/JPH02111818U/ja active Pending