DM300022 Microchip Technology, DM300022 Datasheet - Page 18

• Manufacturer Part Number: DM300022
• Description: MODULE PWR DSPICDEM MC1L LV 3PHS
• Manufacturer: Microchip Technology

Specifications of DM300022

• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 16-Bit
• Utilized Ic / Part: dsPIC33FJxxxMC
• Primary Attributes: 3-Phase Low Voltage Power Module
• Secondary Attributes: Motion Sensor Inputs: Hall Sensors or Optical Encoder
• Silicon Manufacturer: Microchip
• Silicon Core Number: DsPICDEM MC1L
• Kit Application Type: Power Management - Motor Control
• Application Sub Type: 3 Phase Motor
• Silicon Family Name: Piccolo
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

dsPICDEM™ MC1L 3-Phase Low Voltage Power Module
DS70097A-page 12
1.2.6.2
Table 1-2 gives the scaling of the isolated feedback signals as the system is delivered.
TABLE 1-2:
1.2.6.3
As the system is delivered, access is not given to the non-isolated feedback signals to
ensure user safety. If an experienced user wishes to access these signals, they
should read Section 1.5 “Detailed Description of Operation” along with Section
1.6.3.4 “Accessing The Additional (non-isolated) Feedback Signals”. Note that
once the isolation barrier is bridged, all signals can no longer be considered to be
isolated from the power circuit. When operating in the non-isolated configuration, the
Hall current sensors and SPI voltage feedback signals are also available.
The scaling for the signals as the system is delivered is given below. For details of
changing the scaling, see Section 1.6.3 “Changing Current Feedback and Trip
Scaling”.
TABLE 1-3:
Inverter Output (R and Y) Hall Current Sensor
DC Input Hall Current Sensor
DC Bus Voltage via SPI™ Channel
R, Y, B Inverter Leg Shunts
DC Bus Shunt
Brake Chopper Shunt
DC Bus Voltage
R. Y, B Inverter Output Voltages
* If a large rate of change of current occurs due to the use of a load with low
inductance, the voltage across the self-inductance of the shunts will cause an
additional shunt voltage that will add to the shunt feedback signals.
ISOLATED FEEDBACK
NON-ISOLATED FEEDBACK
ISOLATED SCALING
NON-ISOLATED SCALING
Feedback Signal
Feedback Signal
12 A / V with 2.5V = 0A
12 A / V with 2.5V = 0A
230 = 58.7V (1LSB = 0.255V)
12.0 A/V with 2.5V = 0A*
11.9 A/V with 2.5V = 0A*
5.45 A/V
13.05 V/V
13.05 V/V
© 2003 Microchip Technology Inc.
Scaling
Scaling