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參數(shù)資料
| 型號(hào)： | BA6970 |
| 廠商： | Rohm CO.,LTD. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 2-phase motor driver for VCR cylinder motors |
| 中文描述： | 兩相的錄像機(jī)缸發(fā)動(dòng)機(jī)電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 136K |
| 代理商： | BA6970 |
599
Motor driver ICs
BA6970FS
Circuit operation
(1)
The signal from the Hall device is amplified by the
Hall amplifier and then supplied to the driver circuit. The
driver gain, which is constant, is regulated by changing
the Hall amplifier gain with the E
CI
input current or the E
CV
input voltage (E
CI
and E
CV
are output current control pins).
The motor rotational speed is sensed by the FG, and the
output from which is F / I-converted and supplied to the
E
CI
pin or F / V-converted and supplied to the E
CV
pin as
a feedback signal, so that a constant rotational speed is
maintained as follows (Fig. 6) :
(
1) The motor speed decreases.
(
2) The speed control IC outputs a feedback signal
(
3) The Hall amplifier gain increases.
(
4) The output current increases.
(
5) The motor speed increases.
(2)
voltage on Hall IN
φ
1
(
OUT1 (
) to OUT1 (
tial. When the voltage on Hall IN
φ
1
(
other hand, an output current flows from OUT1 (
OUT1 (
).
Similarly, when the voltage on Hall IN
φ
2
(
the voltage on Hall IN
φ
2
(
OUT2 (
) to OUT2 (
) according to the voltage differen-
tial. When the voltage on Hall IN
φ
2
(
other hand, an output current flows from OUT2 (
OUT2 (
).
When the voltage on Hall IN
φ
1
(
) is higher than the
), an output current flows from
) according to the voltage differen-
) is higher, on the
) to
) is higher than
), an output current flows from
) is higher, on the
) to
Fig.6
Fig.7
Fig.8
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA6970FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-phase motor driver for VCR cylinder motors |
| BA6993 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| BA6993F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| BA6995FP | 制造商:ROHM 制造商全稱:Rohm 功能描述:5-channel BTL driver for CD players |
| BA6996 | 制造商:ROHM 制造商全稱:Rohm 功能描述:5-channel BTL driver for CD and MD Players |
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