Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 11 MOTOR CONTROL FUNCTION
R01UH0042EJ0500 Rev.5.00 Page 593 of 1513
Aug 12, 2011
Figure 11-6. Timing Chart of 6-Phase PWM Output Mode
16-bit
counter
M (carrier data)
TAB1CCR0
register
0000H
TOAB11 signal
(internal signal)
TOAB12 signal
(internal signal)
TOAB13 signal
(internal signal)
TAB1DTC
register
TOAB1T1
pin output (U)
TOAB1B1
pin output (U)
Dead-time
counter 1
Dead-time
counter 2
Dead-time
counter 3
TAB1CCR1
register
TAB1CCR2
register
TAB1CCR3
register
N (dead-time value)
i (phase U data)
j (phase V data)
k (phase W data)
i
ii i
j j j j
kkkk
M + 1 M + 1
TOAB10
pin output
Basic phase U output width = (M + 1 - i) ´ 2
Basic phase V output width = (M + 1 − j) × 2
Basic phase W output width = (M + 1 − k) × 2
Phase U output width = (M + 1 − i) × 2 − N
Phase V output width = (M + 1 − j) × 2 − N
Phase W output width = (M + 1 − k) × 2 − N
Dead-time width = N
Phase U output width = (M + 1 − i) × 2 + N
Carrier cycle = (M + 1) × 2
TOAB1T2
pin output (V)
TOAB1B2
pin output (V)
TOAB1T3
pin output (W)
TOAB1B3
pin output (W)
Phase V output width = (M + 1 − j) × 2 + N
Phase W output width = (M + 1 − k) × 2 + N
Cautions 1. Set the value “M” of the TAB1CCR0 register in a range of 0002H ≤ M ≤ FFFEH in the 6-phase
PWM output mode.
2. Only a value of up to “M + 1” can be set to the TAB1CCR1, TAB1CCR2, and TAB1CCR3
registers.
3. The output is 100% if “0000H” is set to the TAB1CCR1, TAB1CCR2, and TAB1CCR3
registers. The output is 0% if “M + 1” is set to the TAB1CCR1, TAB1CCR2, and TAB1CCR3
registers.
The output (duty 50%) rises at the crest (M + 1) of the 16-bit counter and falls at the valley
(0000H) if “M + 2” or higher is set to the TAB1CCR1, TAB1CCR2, and TAB1CCR3 registers.
4. If the operation value of an equation (such as (M + 1 – i) × 2 – N) of the output width of
phases U, V, and W is 0 or lower, it is converged to 0 (100% output). If the operation value is
higher than “(M + 1) × 2”, it is converged to (M + 1) × 2 (0% output).