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參數(shù)資料
| 型號(hào)： | HA13609ANT |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Three-Phase Brushless Motor Driver |
| 中文描述： | 三相無刷電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 17/31頁 |
| 文件大?。?/td> | 143K |
| 代理商： | HA13609ANT |
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HA13609ANT
17
5. The PWM carrier frequency f
PWM
is determined by the following formula:
1
C106 · R1
6. The relationships between the crystal oscillator frequency f
and the speed command clock
f
, the speed detection signal f
MR
, and the discriminator resolution (number of counts) C are
shown below.
f
CLK
= f
MR
·D1
f
OSC
= f
CLK
·1 / D2·C [Hz]
However, C must be in the range 1024
≤
C
≤
4095
Here, D1
: The MR signal divisor determined by D1 select
D2
: The crystal oscillator frequency divisor determined by D2 select.
f
PWM
= 0.0489
[Hz]
14
R4
R5
C4
19
R1
15
16
C3
R3
R7
R6
PLL output
13
Discrimi-
nator
Vp
– +
Buffer amplifier
4Icp
Charge
pump
Discriminator
(1024 to 4095)
PLL
PLL SEL
4% pulse
Discriminator
counter setting
CLK counter
X’tal
f
OSC
SPEED CLK
f
CLK
Speed signal
f
MR
f
MR’
D1
D2
Configuration of the speed control and phase control blocks when @MD9 = 0
Note: If possible, Tr and Tf for the SPEED CLK signal should be under 20 ns when using this circuit.
Discriminator
output
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| HA13631T | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CD-ROM Combo Driver |
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