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參數(shù)資料
| 型號(hào)： | AMC1210IRHAR |
| 英文描述： | Quad Digital Filter for 2nd-Order Delta-Sigma Modulator |
| 中文描述： | 四數(shù)字濾波器2階Δ-Σ調(diào)制器 |
| 文件頁數(shù)： | 36/47頁 |
| 文件大?。?/td> | 805K |
| 代理商： | AMC1210IRHAR |
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APPLICATION INFORMATION
Resolver Applications
Resolvers are used in motor control to determine the angular position and speed of the motor. The resolver
consists of three coils, one connected to the rotor and the other two situated orthogonally on the stator. By
supplying a sine wave carrier signal to the rotor coil, a voltage is magnetically coupled onto the stator coils, of
which the amplitude of the signal is directly proportional to the position of the rotor. By digitizing the stator
signals, the exact position of the rotor can be mathematically calculated.
Sinc
3
AMC1210
ADS1205
CLK
DATA
DATA
IN1P
IN1N
IN2P
IN2N
OSR = 128
OSR = 8
Demodulation
(including phase
adjustment)
Integrator
Carrier cancellation
Parallel Interface
(including configuration
registers)
PWM
Digital, 12-bit
Digital, 14-bit
Resolver
Analog
Sine
Cosine
AMC1210
SBAS372A–APRIL 2006–REVISED OCTOBER 2006
The AMC1210 is designed for use in motor control systems utilizing delta-sigma modulators, particularly the
ADS120x family
of modulators.
Figure 22
shows a block diagram of a standard resolver application.
Figure 22. Typical Resolver Application with AMC1210
The AMC1210, along with the ADS120x family of modulators, provides a high-resolution resolver-to-digital
converter. The user can program a carrier signal that is synchronous with the data rate of the modulator. The
modulators digitize the resulting sine and cosine signals from the resolver. The AMC1210 then filters the
modulator data with the sinc filter. The resulting data can then be passed to the integrator, where demodulation
occurs.
The demodulated signal first gets multiplied by the polarity of the carrier signal. If the integrator is programmed
with the correct OSR, it sums a clock cycle of the rectified signal. The resulting signal is the
baseband
signal of
the sine or cosine wave. These values can then be processed by a microcontroller to obtain the actual digital
representation of the motor position.
Several factors need to be considered for a high-performance resolver design. The first item of importance is to
establish the timing of the motor control loop. This timing is the rate at which the microcontroller updates the
motor driving circuitry. A typical application synchronizes the frequency of the carrier signal to the motor control
loop frequency. With a known motor control frequency and a system clock frequency, the user can determine
how to set up the AMC1210 for optimal performance.
Example 2
shows how the AMC1210 would be set up with
a carrier frequency of 8kHz and a system clock frequency of 32MHz.
36
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| AMC1210IRHARG4 | Quad Digital Filter for 2nd-Order Delta-Sigma Modulator |
| AMC1210IRHAT | Quad Digital Filter for 2nd-Order Delta-Sigma Modulator |
| AMC1210IRHATG4 | Quad Digital Filter for 2nd-Order Delta-Sigma Modulator |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMC1210IRHARG4 | 功能描述:有源濾波器 4Ch Dig Filter RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| AMC1210IRHAT | 功能描述:有源濾波器 4 Ch Dig Filter for ADS120X RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| AMC1210IRHATG4 | 功能描述:有源濾波器 4Ch Dig Filter RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| AMC1210MB-EVM | 功能描述:有源濾波器開發(fā)工具 AMC1210 Mother Board RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 工具用于評(píng)估:MAX7408-MAX7415, MAX7418-MAX7425 截止頻率:1 Hz to 15 kHz 工作電源電壓:3 V, 5 V |
| AMC-123 | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:High Performance Amplifier |
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