直流电机驱动器件选型
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AC Motor Drive
Table of Contents
AC INPUT, Diode Bridges (2)
AC INPUT, Power Factor Correction (3)
AC INPUT, X/Y Capacitors (4)
BIAS SUPPLY (off-line, flyback), Discretes (5)
BIAS SUPPLY (off-line, flyback), Feedback (6)
BIAS SUPPLY (off-line, flyback), Power Semiconductors (7)
CONTROL AND GATE DRIVE, Capacitors (8)
CONTROL AND GATE DRIVE, Communications (9)
CONTROL AND GATE DRIVE, Discretes (10)
CONTROL AND GATE DRIVE, ESD Protection (11)
CONTROL AND GATE DRIVE, Gate Drive (12)
CONTROL AND GATE DRIVE, Isolation (13)
INVERTER (DC/AC) OUTPUT, Discretes (14)
INVERTER (DC/AC) OUTPUT, Modules (15)
INVERTER (DC/AC) OUTPUT, Power Semiconductors for 3- # Driver Bridge (16)
VISHAY components used for Motor Drives can include:
• Power MOSFETS
• High-Power Modules
• Diodes and Rectifiers
• Capacitors
• Resistors
• Thermistors
• Visible LEDs
• Optical Isolators
• Inductors / EMI Filters
• Shunt Resistors
• ESD Protection Devices
• LDOs
• Communications Interface ICs
Application Overview
A motor can be a simple induction machine that rotates with the connection of a simple AC voltage. In applications
that require more precise control of speed, torque, or positioning, it is more common to use a 3-phase motor. In order to control this type of motor, signals must be generated that cause the motor to spin properly, using feedback to close the loop and regulate the desired parameters.
AC Motor Drive : AC INPUT, Diode Bridges Single Phase
Three Phase
AC Motor Drive : AC INPUT, Power Factor Correction Bulk Capacitor
Inductor
PFC fast diode
PFC MOSFET
PFC pre-charge diode
Shunt resistor
AC Motor Drive : AC INPUT, X/Y Capacitors Film RFI caps
Inductor
Multilayer Ceramic Chip Capacitors
Shunt resistor
Tantalum Capacitors
Transformer
TVS and ESD protection
AC Motor Drive : BIAS SUPPLY (off-line, flyback), Power Semiconductors Flyback Diode
Flyback Switch
AC Motor Drive : CONTROL AND GATE DRIVE, Capacitors Multilayer Ceramic Chip Capacitors
Tantalum Capacitors
AC Motor Drive : CONTROL AND GATE DRIVE, Communications Communication Bus Interface IC
AC Motor Drive : CONTROL AND GATE DRIVE, Discretes Feedback Resistors
LED indicators
Linear Reg for Encoder Power
Switching diode
Zener clamp diodes
AC Motor Drive : CONTROL AND GATE DRIVE, ESD Protection ESD Protection Diodes