JPH01100410U - - Google Patents
Info
- Publication number
- JPH01100410U JPH01100410U JP19519887U JP19519887U JPH01100410U JP H01100410 U JPH01100410 U JP H01100410U JP 19519887 U JP19519887 U JP 19519887U JP 19519887 U JP19519887 U JP 19519887U JP H01100410 U JPH01100410 U JP H01100410U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- transformer
- inverting input
- input terminal
- amplifying means
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Coils Or Transformers For Communication (AREA)
- Networks Using Active Elements (AREA)
Description
第１図はこの考案の一実施例による誤差補償形
変圧器の回路図、第２図は第１図の等価回路図、
第３図は従来の誤差補償形変圧器の回路図、第４
図は第３図の等価回路図である。
図において、ＴＲは変圧器、Ｒｃは補償抵抗、
Ｒ１及びＲ２１は帰還抵抗、Ｒ１１，Ｒ２２及び
Ｒ２３は抵抗、Ｃ２はコンデンサ、４２は演算増
幅器、Ｚ２は二次漏れインピーダンスである。な
お、各図中同一符号は同一または相当部分を示す
。
Figure 1 is a circuit diagram of an error compensation transformer according to an embodiment of this invention, Figure 2 is an equivalent circuit diagram of Figure 1,
Figure 3 is a circuit diagram of a conventional error compensation type transformer;
The figure is an equivalent circuit diagram of FIG. 3. In the figure, TR is a transformer, Rc is a compensation resistor,
R 1 and R 21 are feedback resistors, R 11 , R 22 and R 23 are resistors, C 2 is a capacitor, 42 is an operational amplifier, and Z 2 is a secondary leakage impedance. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
手段と、 上記変圧器の二次巻線の一端に反転入力端子が
接続された増幅手段と、 上記変圧器の二次巻線の他端と上記増幅手段の
非反転入力端子との間に接続された補償抵抗と、 上記増幅手段の出力端子と非反転入力端子との
間に接続された第一の帰還抵抗と、 上記増幅手段の出力端子と反転入力端子との間
に接続された第二の帰還抵抗と、 上記増幅手段の反転入力端子に一端が接続され
た第三の抵抗と、 上記増幅手段の出力端子に一端が接続され、他
端が上記第三の抵抗の他端に接続された第四の抵
抗と、 上記第四の抵抗の他端に一端が接続され、他端
が上記変圧器の二次巻線の他端に実質的に接続さ
れたコンデンサと、 を備えた誤差補償形変圧器。 (2) 上記補償抵抗Ｒｃは、上記変圧器の二次漏
れインピーダンスをＺ２、上記第一の帰還抵抗を
Ｒ１、上記第二の帰還抵抗をＲ２１、上記第三の
抵抗をＲ２２とすると、ＲＣ＝Ｒ１・Ｚ２Ｒ２１
＋（Ｒ２１／Ｒ２２）・Ｚ２ で表わされ、入力電圧の角周波数をω、上記コン
デンサの容量をＣ２、上記第四の抵抗をＲ２３と
すると１ωＣ２はＲ２１，Ｒ２２及びＲ２３に対
して十分小さいことを特徴とする実用新案登録請
求の範囲第１項記載の誤差補償形変圧器。[Claims for Utility Model Registration] (1) A transformer, current limiting means connected in series to the primary winding of the transformer, and an inverting input terminal connected to one end of the secondary winding of the transformer. a compensation resistor connected between the other end of the secondary winding of the transformer and the non-inverting input terminal of the amplifying means; and between the output terminal and the non-inverting input terminal of the amplifying means; a second feedback resistor connected between the output terminal and the inverting input terminal of the amplifying means; and a third feedback resistor having one end connected to the inverting input terminal of the amplifying means. a fourth resistor, one end of which is connected to the output terminal of the amplifying means and the other end of which is connected to the other end of the third resistor; one end of which is connected to the other end of the fourth resistor. , a capacitor whose other end is substantially connected to the other end of the secondary winding of the transformer; (2) The compensation resistor Rc has the secondary leakage impedance of the transformer as Z2 , the first feedback resistor as R1 , the second feedback resistor as R21 , and the third resistor as R22 . Then, RC=R 1・Z 2 R 21
+(R 21 /R 22 )・Z 2 , where ω is the angular frequency of the input voltage, C 2 is the capacitance of the capacitor, and R 23 is the fourth resistor, 1ωC 2 is R 21 , R 22 and R23 , the error compensating transformer according to claim 1, wherein the error compensation transformer is sufficiently small with respect to R23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19519887U JPH01100410U (en) | 1987-12-23 | 1987-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19519887U JPH01100410U (en) | 1987-12-23 | 1987-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100410U true JPH01100410U (en) | 1989-07-05 |
Family
ID=31485888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19519887U Pending JPH01100410U (en) | 1987-12-23 | 1987-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100410U (en) |
-
1987
- 1987-12-23 JP JP19519887U patent/JPH01100410U/ja active Pending
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