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Low Power High Voltage Motor Control Reference Design

Part Number: LPHV-MC-Board

**For development reference only, not a product for sale**

Summary:

Even though most high voltage (110Vac/220Vac) 3-phase motor control applications are high power (>1kW) there are many applications that are low power (<500W). In those cases running on a high power system is not very efficient.  To better demonstrate the capabilities in regards to efficiency in low power high voltage motor control we have developed this reference design (limited to

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Product Features

    • 3-phase motor control power stage for driving Low Power High Voltage BLDC/ PMSM motors.
    • Current amplification and over current protection through amplifiers/comparators internal to the dsPIC33EP64MC206.
    • Motor drive stage uses an integrated power module with a built-in temperature sensing circuit.
    • Phase voltage feedback for sensorless BLDC operation and windmilling.
    • DC bus and Phase current sensing for single/dual shunt sensorless FOC control.
    • Non-isolated Hall sensors/Quadrature Encoder Interface (QEI) for sensored motor control algorithms.
    • Isolated TTL UART interface.
    • Four LEDs for debug/indication.
    • Four user configurable push buttons.
    • FG signal output
    The Low Power High Voltage Board is capable of operating from 90VAC up to a maximum of 230VAC with power output up to 150W.

Related Tools

Please see below for related development tools.

AC300025

Summary

Even though most high voltage (110Vac/220Vac) 3-phase motor control applications are high power (>1kW) there are many applications that are low power (<500W). In those cases running on a high power system is not very efficient.  To better demonstrate the capabilities in regards to efficiency in low power high voltage motor control we have developed this reference design (limited to 150W).
This compact and cost-effective high voltage board is targeted to control various high voltage motors such as Brushless DC (BLDC) motors, Permanent Magnet Synchronous Motors (PMSM) and AC Induction Motors (ACIM) in sensored or sensorless operation.

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