JPH01143292U - - Google Patents
Info
- Publication number
- JPH01143292U JPH01143292U JP3774488U JP3774488U JPH01143292U JP H01143292 U JPH01143292 U JP H01143292U JP 3774488 U JP3774488 U JP 3774488U JP 3774488 U JP3774488 U JP 3774488U JP H01143292 U JPH01143292 U JP H01143292U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- gap
- current detector
- iron core
- circuit
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図はこの考案の一実施例による直流電流検
出器を用いたインバータ装置、第２図は従来の直
流電流検出器を用いたインバータ装置、第３図は
直流電流検出器の動作原理を示した図である。
図において、５はコイル、６は鉄心、７はホー
ル素子、９は直流電流検出器、１０はＣＲ回路を
示す。なお、図中、同一符号は同一、又は相当部
分を示す。
Fig. 1 shows an inverter device using a DC current detector according to an embodiment of this invention, Fig. 2 shows an inverter device using a conventional DC current detector, and Fig. 3 shows the operating principle of the DC current detector. This is a diagram. In the figure, 5 is a coil, 6 is an iron core, 7 is a Hall element, 9 is a DC current detector, and 10 is a CR circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
ギヤツプ中にホール素子を置いて、コイルに流れ
る電流によつて鉄心のギツプ中に生じる磁界をホ
ール電圧に変換して取り出せる回路を有した直流
電流検出器において、上記回路のコイルの両端に
コンデンサと抵抗を直列に接続したことを特徴と
するインバータ装置の直流電流検出器。 A DC current detector that has a circuit in which a coil is attached to an iron core with a gap, a Hall element is placed in the gap, and the magnetic field generated in the gap of the iron core by the current flowing through the coil can be converted into Hall voltage and taken out. A DC current detector for an inverter device, characterized in that a capacitor and a resistor are connected in series to both ends of the coil of the above circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3774488U JPH01143292U (en) | 1988-03-23 | 1988-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3774488U JPH01143292U (en) | 1988-03-23 | 1988-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01143292U true JPH01143292U (en) | 1989-10-02 |
Family
ID=31264319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3774488U Pending JPH01143292U (en) | 1988-03-23 | 1988-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01143292U (en) |
-
1988
- 1988-03-23 JP JP3774488U patent/JPH01143292U/ja active Pending