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参数资料
| 型号： | L6230QTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, QCC32 |
| 封装： | 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFP-32 |
| 文件页数： | 9/24页 |
| 文件大小： | 577K |
| 代理商： | L6230QTR |
L6230
Application information
Doc ID 18094 Rev 2
17/24
Figure 15.
Six-step with current control typical application
6.3
Six-step driving method with BEMF zero crossing detection
The BEMF zero crossing information can be used to evaluate the rotor position; in this way
no Hall effect sensors or encoder are needed.
In six-step driving mode one of the three phases is left in high impedance state.
Comparing the voltage of this phase with the center-tap voltage we can detect the BEMF
zero-crossing.
In shown example (see Figure 16), the OUT1 phase voltage is monitored by the CP+; the
center-tap voltage is obtained as combination of three phase voltages and monitored by the
CP- pin. Only when the OUT1 is in high impedance, the CPOUT will perform a commutation
each time a BEMF zero crossing is detected.
In this configuration one sense resistor is needed, the three OUT pins are connected
together to RSENSE.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6231H | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| L6232A | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SPINDLE DRIVER |
| L6232B | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SPINDLE DRIVER |
| L6232E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SPINDLE DRIVER |
| L6233 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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