JPS58170018U - Write current detection circuit - Google Patents
Write current detection circuitInfo
- Publication number
- JPS58170018U JPS58170018U JP6591682U JP6591682U JPS58170018U JP S58170018 U JPS58170018 U JP S58170018U JP 6591682 U JP6591682 U JP 6591682U JP 6591682 U JP6591682 U JP 6591682U JP S58170018 U JPS58170018 U JP S58170018U
- Authority
- JP
- Japan
- Prior art keywords
- current detection
- voltage
- write current
- detection circuit
- write
- 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
- Digital Magnetic Recording (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の書き込み電流検出回路を示す回路図、第
２図はこの考案の一実施例を示す回路図１、第３図は第
２図の各部の信号を示す信号波形図である。
図において、ｊは書き込み回路、１８は差動増゛幅器、
１９．２０は電圧比較器、２６は書き込み □電流検出
回路である。なお図中同一符号は同一または相当部分を
示す。FIG. 1 is a circuit diagram showing a conventional write current detection circuit, FIG. 2 is a circuit diagram 1 showing an embodiment of this invention, and FIG. 3 is a signal waveform diagram showing signals at various parts in FIG. In the figure, j is a write circuit, 18 is a differential amplifier,
19.20 is a voltage comparator, and 26 is a write current detection circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
の両端の電位差に応じた書き込み電流検出電圧を発生す
る差動増幅器と、上記書き込み電流検出電圧を第１の比
較電圧と比較し、第１の電流検出信号を発生するための
第１の電圧比較器と、上記書き込み電流検出電圧を第２
の比較電圧とする第２の電圧比較器とを備え、上記第１
の比較電圧のより大きな電圧に設定される上記第２の比
較電圧を越える上記書ｊ込み電流検出電圧が発生すると
き、上記第２の電流検出信号を発生することを特徴とす
る書き込み電流検出回路。a differential amplifier that generates a write current detection voltage according to the potential difference across the write current flowing through the circuit element of the write circuit; and a differential amplifier that compares the write current detection voltage with a first comparison voltage to generate a first current detection signal. A first voltage comparator for generating the write current detection voltage, and a second voltage comparator for generating the write current detection voltage.
and a second voltage comparator which sets the comparison voltage to the first voltage.
A write current detection circuit that generates the second current detection signal when the write current detection voltage that exceeds the second comparison voltage that is set to a larger voltage than the comparison voltage of .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6591682U JPS58170018U (en) | 1982-05-06 | 1982-05-06 | Write current detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6591682U JPS58170018U (en) | 1982-05-06 | 1982-05-06 | Write current detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58170018U true JPS58170018U (en) | 1983-11-12 |
Family
ID=30075838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6591682U Pending JPS58170018U (en) | 1982-05-06 | 1982-05-06 | Write current detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58170018U (en) |
-
1982
- 1982-05-06 JP JP6591682U patent/JPS58170018U/en active Pending
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