- 您现在的位置：买卖IC网 > PDF目录98066 > PWR-82340-300 (DATA DEVICE CORP) BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 PDF资料下载
参数资料
| 型号： | PWR-82340-300 |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
| 封装： | 2.25 X 2.1 INCH, 0.39 INCH HEIGHT, PACKAGE-18 |
| 文件页数： | 16/16页 |
| 文件大小： | 384K |
| 代理商： | PWR-82340-300 |
9
Data Device Corporation
www.ddc-web.com
PWR-82340/PWR-82342
H-06/05-0
PWR-82340 POWER DISSIPATION (SEE FIGURE 11)
There are three major contributors to power dissipation in the
motor driver: conduction losses, switching losses, and flyback
diode losses.
VCC = 140 V(Bus Voltage)
IOA = 20 A (see FIGURE 11) ; IOB = 30 A; (see FIGURE 11)
ton = 20 ms (see FIGURE 11); T = 40 ms (period)
Ron = 0.1 W (on resistance see Table 2, Io = 30 A, Tc = 25 °C)
ts1 = 250 ns (see FIGURE 11); ts2 = 250 ns (see FIGURE 11)
fo = 25 kHz(switching frequency)
Vf is the diode forward voltage, Table 2, Io = 30 A,Tc = 25 °C
Vf(avg) = 1.15 V
If is the diode forward current
1. Conduction Losses (PC)
PC = I(t)2 x Ron = I motor rms2 x Ron
PWR-82342 POWER DISSIPATION (SEE FIGURE 11)
There are three major contributors to power dissipation in the
motor driver: conduction losses, switching losses, and flyback
diode losses.
VCC = 270 V(Bus Voltage)
IOA = 20 A (see FIGURE 11) ; IOB = 30 A; (see FIGURE 11)
ton = 50 ms (see FIGURE 11); T = 100 ms (period)
VCE(SAT) = 3.8 V (see TABLE 2, Io = 30 A, Tc = 25 °C)
ts1 = 300 ns (see FIGURE 11); ts2 = 300 ns (see FIGURE 11)
fo = 10 kHz(switching frequency)
Vf is the diode forward voltage, Table 2, Io = 30 A,Tc = 25 °C
Vf(avg) = 1.70 V
If is the diode forward current
1. Conduction Losses (PC)
PC = I(t)2 x VCE(SAT) = IAVG x VCE(SAT)
I
rms =
I
2
OB -IOB (IOB -IOA)+
(I
OB -IOA)
2
3
t
on
T
motor
I
rms =
30
2 -30 (30 -20) + (30 - 20)
2
3
20
40
motor
PC = (17.80 A)2 x (0.1 )
PC = 31.68 Watts
2. Switching Losses (PS)
PS = {VCC [IOA (ts1) + IOB (ts2)] fo} / 2
PS = {140 [20 (250 ns) + 30 (250 ns)] 25k} / 2
PS = 21.88 Watts
3. Flyback diode Losses (Pdf)
Pdf = If (avg) x Vf (avg)
If (avg) = [(IOB + IOA)/2] / 2 = [(30 + 20)/2] / 2 = 12.5 A
Pdf = 12.5 A x 1.15 V
Pdf = 14.38 Watts
To calculate the maximum power dissipation of the output tran-
sistor as a function of the case temperature use the following
equation. (Reference FIGURE 20 to ensure you don't exceed the
maximum allowable power dissipation of each transistor.)
PQ = PC + PS
To calculate Total Power dissipated in the hybrid use:
where i = each transistor or diode.
P
Total =
Σ
4
i=1
[P
ci +Psi +Pdfi]
I AVG =
+
(IOB
IOA)
2
t
on
T
I AVG =
+
(30
20 )
2
50
100
PC = (12.5 A) x (3.8 V)
PC = 47.50 Watts
2. Switching Losses (PS)
PS = {VCC [IOA (ts1) + IOB (ts2)]fo} / 2
PS = {270 [20 (300ns) + 30 (300ns)]10k} / 2
PS = 20.25 Watts
3. Flyback diode Losses (Pdf)
Pdf = Is (avg) x Vf (avg)
If (avg) = [(IOB + IOA) / 2] / 2 = [(30 + 20) / 2] / 2 = 12.5 A
Pdf = 12.5 A x 1.70 V
Pdf = 21.25 Watts
To calculate the maximum power dissipation of the output tran-
sistor as a function of the case temperature use the following
equation. (Reference FIGURE 20 to ensure you don't exceed the
maximum allowable power dissipation of each transistor.)
PQ = PC + PS
To calculate Total Power dissipated in the hybrid use:
where i = each transistor or diode.
P
Total =
Σ
4
i=1
[P
ci +Psi +Pdfi]
FIGURE 11. OUTPUT CHARACTERISTICS
相关PDF资料 |
PDF描述 |
|---|---|
| PWR-82340-110 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
| PWR-82340-100 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
| PWR-82342-100 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
| PWR-82342-300 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
| PWR-82340-120 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PWR-82341 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Drives (Power Amplifiers)|H-Bridge Drive. Flat Pack Hybrid with Formed Leads |
| PWR-82341-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC Motor Controller/Driver |
| PWR-82341-110 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC Motor Controller/Driver |
| PWR-82341-120 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC Motor Controller/Driver |
| PWR-82341-200 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC Motor Controller/Driver |
发布紧急采购，3分钟左右您将得到回复。