UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 492

• Manufacturer Part Number: UPD78F1203MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1203MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

490
Figure 7-87. Example of using non-complementary excitation to achieve 120 degree excitation control of a 3-
brushless DC motor is shown in Figure 7-87 below.
An example of using non-complementary excitation to achieve 120 degree excitation control of a 3-phase
120 degree chopping
60 degree chopping.
60 degree chopping
Upper arm
Second-half
First-half
Example of excitation
Excitation pattern No.
Slave Channel2 (TO02)
Slave Channel3 (TO03)
Slave Channel4 (TO04)
Slave Channel5 (TO05)
Slave Channel6 (TO06)
Slave Channel7 (TO07)
Slave Channel2 (TO02)
Slave Channel3 (TO03)
Slave Channel4 (TO04)
Slave Channel5 (TO05)
Slave Channel6 (TO06)
Slave Channel7 (TO07)
Slave Channel2 (TO02)
Slave Channel3 (TO03)
Slave Channel4 (TO04)
Slave Channel5 (TO05)
Slave Channel6 (TO06)
Slave Channel7 (TO07)
CHAPTER 7 INVERTER CONTROL FUNCTIONS
phase brushless DC motor
User’s Manual U19678EJ1V1UD
W phase +
6
V phase -
1
U phase +
2
W phase -
3
V phase +
4
U phase -
5
W phase +
V phase -
6