DS70096A

Description

The DS70096A Microchip dsPICDEM MC1H 3-Phase High Voltage Power Module is intended to aid the user in the rapid evaluation and development of a wide variety of motor control applications using the dsPIC^® microcontroller. The design of the system includes Microchip analog components, as well as a PIC^® microcontroller used to provide isolated voltage feedback. The main components of the system are shown in Figure 1-2.

The rated continuous output current from the inverter is 2.5A (RMS). This allows up to approximately 0.8 kVA output when running from a 208V to 230V single-phase input voltage in a maximum 30°C (85F) ambient temperature environment. Thus, the system is ideally suited to running a standard 3-Phase Induction Motor of up to 0.55 kW (0.75 HP) rating or an industrial servomotor of slightly higher rating. The power module is capable of driving other types of motors and electrical loads that do not exceed the maximum power limit and are predominantly inductive. Furthermore, single-phase loads can be driven using 1 or 2 of the inverter outputs.

The DS70096A unit is capable of operating from any AC voltage up to a maximum of 265V. Operation at voltages beneath 208V requires that the output power is reduced owing to inverter output and AC input stage current limits. A more detailed explanation of power limitations is given in Section 1.4 "Detailed Description of Operation".

The user should read Section 1.3 "Current and Power Limitations" and Section 1.4 "Detailed Description of Operation" carefully before using the system.