AN1661 Freescale Semiconductor / Motorola, AN1661 Datasheet - Page 4

• Manufacturer Part Number: AN1661
• Description: Low Cost Universal Motor Chopper Drive System
• Manufacturer: Freescale Semiconductor / Motorola

Application Note
Circuit
4
The MC68HC705MC4 is well suited for motor drive applications with its
A/D converter and with its PWM block.
ON Semiconductor’s series of IGBTs offered are specially designed for
efficient motor drives. Switching times, saturation voltage, and short
circuit capability have been optimized for these applications. The higher
threshold eliminates the need for negative gate drive. With a fast
switching and short circuit capability, the E Family of IGBTs fits well in
high-performance, line-operated, pulse-width modulated, variable speed
motor drives. This family includes the single IGBTs (without copackaged
freewheeling diode) in the current range of 5 A to 20 A in a TO220
package. Some parameters of the chosen IGBT are shown in
The MC33153 driver is specially designed to drive the gate of an IGBT
used for high-power applications, such as motor drive. It can be used
with discrete IGBTs and IGBT modules up to 100 A. Device protection
features include the choice of desaturation or overcurrent sensing plus
undervoltage lockout optimized for IGBTs.
In
The six major parts are:
Collector-emitter voltage VCES
Collector current continuous IC90
Collector-to-emitter on-state voltage (IC = 4 A) VCE (on)
Gate threshold voltage VGE(th)
Turn on/Turn off delay time td(on)/td(off)
Figure
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Freescale Semiconductor, Inc.
For More Information On This Product,
Power stage
Relay
Current measurement
Circuitry for a tachometer connection
Power supply
Microcontroller
Table 1. Electrical Characteristics of the MGP7N60E
3, the schematic of a chopper motor control board is shown.
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Parameter
600-V max
7-A max
2.2-V typ
6-V typ
59/150-ns typ
MOTOROLA
Value
Table
AN1661
1.