2. ータ・ドライバ IC のアプリケーション回路シミュレーション
R S B 7 . 5 o h m
L 2
1 . 5 6 2 m H
I C = - 0 . 5 A
1
2
V 5
0 s
1 0 n s
0 V
5 V
0
V _ R E F B
D C = 1 . 2 5
C v r e f B
1 u F
0
0
0
V _ R E F A
D C = 1 . 2 5
C v r e f a
1 u F
L 1
1 . 5 6 2 m H
I C = 0 A
12
R S A
7 . 5 o h m
0
R R S A0 . 5
R R S B0 . 5
0
V M
2 4 V d c C V M
1 0 0 u F
00
0 0
V D
5 V d c
C 1
1 0 u F
0 0
R o s c 3 . 6 k
C o s c 5 6 0 p F
0
0
U 1
T B 6 2 2 0 6 F G
C C P 1 = 0 . 2 2 U F
C C P 2 = 0 . 0 2 2 U F
C O S C = 5 6 0 P F
V M = 2 4
R N F A = 1 0 0 m V
R N F B = 1 0 0 m V
R O S C = 3 . 6 K
F I N
C R
V D D
V R E F _ A
V R E F _ B
R S _ B
R S _ A
V M
C C P _ C
C C P _ B
C C P _ A S T A N D B Y
O U T _ A 1
P H A S E _ A
P H A S E _ B
O U T _ A
O U T _ B
E N A B L E _ A
E N A B L E _ B
O U T _ B 1
T O R Q U E
C c c p _ 1
0 . 2 2 u F
C c c p _ 2
0 . 0 2 2 u F
V
I
V _ P H A S E _ A
T D = 0
T F = { t f p h a s e }
P W = { p w p h a s e }
P E R = { t p h a s e }
V 1 = 0
T R = { t r p h a s e }
V 2 = 5 V
V _ P H A S E _ B
T D = { t p h a s e / 4 }
T F = { t f p h a s e }
P W = { p w p h a s e }
P E R = { t p h a s e }
V 1 = 5 V
T R = { t r p h a s e }
V 2 = 0
TB62206FG( 東芝セミコンダクター社 )
Phase current is simulated at fchop=100kHz to predict motor current ripple.
ステッピングモータ
キー・デバイス (IC)
TB62206FG
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
5. Device Feature:
• Input logic to drive
Bipolar Step Motor
• Internal OSC
• Current Level Set
• Mixed Decay Control
• Charge Pump Unit
• H-Bridge Output
• Protection Unit
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
6. Datasheet Diagram
Simulation Result
Ti me
40 0u s 40 2 u s 40 4u s 4 0 6us 408 us 4 10 u s 4 12 us 4 14 us 4 16u s 41 8u s 4 20 us
I ( VL A)
45 0 mA
50 0 mA
55 0 mA
V( OSC)
SEL >>
MIXED DECAY MODE Waveform (current waveform)
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
7. T i me
2 . 0 ms 4 . 0 ms0 . 1 ms
1 I ( U1 : OUT _ A1 ) 2 V( U1 : PHASE_ A) 3 V( V_ PHASE_ B: + )
- 1 . 0 A
- 0 . 5 A
0 A
0 . 5 A
1 . 0 A
1 . 5 A
2 . 0 A
2 . 5 A
3 . 0 A
1 2
- 2 0 V
0 V
2 0 V
3
> >
Input Control Signal
Phase (A)
Input Control Signal
Phase (B)
Motor Phase Current
Current Ripple
Phase Input vs. Phase Output Current
( 250Hz Phase Frequency )
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
8. Motor Phase Current
(Ripple)
Output V(A)
Output V(A)
T i me
2 1 0 u s 2 1 1 u s 2 1 2 u s 2 1 3 u s 2 1 4 u s 2 1 5 u s 2 1 6 u s 2 1 7 u s 2 1 8 u s 2 1 9 u s
1 V( X_ U1 . I OUT _ A1 ) 2 V( U1 : OUT _ A1 ) V( U1 : OUT _ A)
- 1 0 0 mV
0 V
1 0 0 mV
2 0 0 mV
3 0 0 mV
4 0 0 mV
5 0 0 mV
6 0 0 mV
7 0 0 mV
1
> >
- 1 0 V
0 V
1 0 V
2 0 V
3 0 V
4 0 V
5 0 V
6 0 V
7 0 V
2
MIXED DECAY MODE Current Waveform
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
9. Ccp1 Pin Voltage
STANDBY Input Signal
Ti me
0 s 0 . 1 ms 0 . 2 ms 0 . 3 ms 0 . 4 ms 0 . 5 ms 0 . 6 ms 0 . 7 ms 0 . 8 ms 0 . 9 ms
V( Cc p _ A) V( STANDBY)
0 V
5 V
1 0 V
1 5 V
2 0 V
2 5 V
3 0 V
3 5 V
4 0 V
Charge Pump Rise Time
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
10. Ti me
1 I ( U1 : OUT_ A1 ) 2 I ( U1: OUT_ B1 )
- 2 . 0 0A
- 1 . 0 0A
0 A
0. 7 5 A
1
SEL >>
0 A
1 . 0 0 A
2 . 0 0 A
- 0 . 7 5 A
2
SEL >>
1 V( U1 : ENABLE_ A) 2 V( U1 : ENABL E_ B)
- 1 0V
- 5 V
0 V
5 V
1
>>
0 V
5 V
1 0 V
1 5 V
2
1 V( U1 : PHASE_ A) 2 V( U1 : PHASE_ B)
- 1 0V
- 5 V
0 V
5 V
1
>>
0 V
5 V
1 0 V
1 5 V
2
Simulation Explore Rate
of Current Change
Simulation Result
Half Step Control Signal
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
11. 0
0.002
0.004
0.006
0.008
0.01
0.012
1.E+02 1.E+03 1.E+04 1.E+05
Frequency(Hz)
Ls(H)
Ls
Phase Inductance (Ls) is selected at phase frequency 100kHz
Ls = 2.315mH
Phase Inductnace (Ls) vs. Frequency ( ステッピング・モーター )
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
12. Motor coil is modeled from an inductor series with resistor.
Model parameters are extracted to fit characteristics around chopping
frequency (100kHz).Ls=2.315mH, Rs=8.7ohm
Phase Inductor model (100k-1MHz)
ータ・ドライバ IC のアプリケーション回路シミュレーション
Agilent 4294A
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
13. Phase Signal
Input
Current Probe
TB62206FG
Bipolar Stepping Motor
Motor Phase Current
Recommended Application Circuit Bench Test (Bread Board Circuit)
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
14. Measured result show the ripple current
Ripple Current Magnitude
Output V(A)
Motor Phase
Current
Output V(A)
Snap Current
Measured result: Mixed Decay Mode ripple current
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008
15. The result show how model simulate Ripple Current Magnitude at fchop is approximately 100kHz.
Ripple Current Magnitude
Ti me
21 0u s 2 1 1u s 2 1 2u s 21 3u s 21 4u s 2 1 5 us 21 6u s 21 7u s 21 8 us 21 9u s
1 V( X_ U1 . I OUT_ A1 ) 2 V( U1: OUT_ A1) V( U1: OUT_ A)
- 1 00 mV
0 V
1 00 mV
2 00 mV
3 00 mV
4 00 mV
5 00 mV
6 00 mV
7 00 mV
1
>>
- 10 V
0 V
10 V
20 V
30 V
40 V
50 V
60 V
70 V
2
Motor Phase
Current:
V(X_U1.IOUT_A1)
Output V(A):
V(U1:OUT_A1)
Output V(A):
V(U1:OUT_A)
Snap Current
Simulated result: (the chopping frequency is approximately 100kHz)
ータ・ドライバ IC のアプリケーション回路シミュレーション
All Rights Reserved copyright (C) Bee Technologies Inc. 2008