HA13563 Datasheet, PDF (6/18 Pages) Hitachi Semiconductor – Three-Phase Brushless Motor Driver

HA13563/V
External Components
Part No.
Recommended Value Purpose
R1 to R4
—
Integration constant
R101, R102
—
Hall element bias
R103
1 kΩ
Clock oscillator stabilization
R_NF
—
Rt
—
Current detection
PWM carrier oscillator time constant
C1, C2
—
Integration constant
C101
≥ 0.1 µF
Power supply bypass
C102, C103, C104 0.047 µF
Stabilization
C108
—
FG coupling
C109
0.047 µF
Clock oscillator stabilization
C110
10 pF
Crystal coupling
Ct1
1000 pF
PWM carrier oscillator time constant
Ct2
—
Stuck rotor protection circuit time constant
X’tal
—
Reference oscillator
Notes: 1. Determine the component values using the following as a guidline:
First determine the angular frequency of ω_P for DIS OUT and PLL OUT.
ω_P = 2π · ffg [rad/sec]
(1)
Determine the the angular frequency of ω_P for motor.
ω_M ≈
9.55
N_O
⋅
1
J
K_T
⋅
Vref1
R_NF
−
T_L
[rad/sec]
(2)
Determine the ω_O.
ω_O = ω_P ⋅ ω_M [rad/sec]
(3)
Determine the integrator’s DC gain G_(E).
G_(E) =
J
9.55
⋅
⋅
ω_O
K_T
⋅
A
⋅
1
Z
60
⋅
2π
⋅
Kø
ω_O
(4)
where, kφ
: PLL gain = 0.4 (V/rad/sec)
A=
2 V_CC − 0.83 ⋅ V_E − Vsat
Rm ⋅ Vosc
Z : FG pulse per round (P/R)
N_O : Motor speed (min^–1)
ω_O : Control loop angular frequency (rad/sec)
ffg : FG frequency (Hz)
J : Moment of inertia of the motor (kg m²)
Rm : Motor coil resistance (Ω/T–T)
Note
1
2
9
3
6
1
4
4
5
9
9
6
7
8
6