The dsPICDEM MC1L 3-Phase Low Voltage Po wer Module is intended to aid the user in the rapid evaluation and development of a wide variety of low voltage DC motor control applications using the dsPIC ® microcontroller. The design of the system includes several 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 1-1. The unit is capable of operating from any voltage up to a maximum of 48V (average) and 58V (peak). It is therefore suitable for use on a very wide range of applications. These include conventional commercial and industrial applications running off up to 48V DC supplies, as well as automotive applications including the new 42V bus standard. Protection is provided for accidental reverse connection of the DC input, as well as for motor and wiring short circuits. The continuous rated input current is 15A (RMS). The continuous rated output current from the inverter is also 15A (RMS). This results in the maximum output power being linearly related to the input voltage. A pproximately 400VA/300W output may be achieved when running from a 24 DC input voltage up to a 30°C (85F) ambient. Thus, the system is ideally suited to running quite large 3-phase brushless DC motors or specialist induction machines wound for oper ation at low voltage. 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. dsPICDEM MC1L 3-Phase Low Voltage Power Module User’s Guide 2003 Microchip Technology Inc. DS70097A Note the following details of the code protection feature on Microchip devices: Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using……