- 您现在的位置：买卖IC网 > PDF目录1221 > IRCS2277S (International Rectifier)DEMO FOR 3-PHASE/380V MOTOR DRV PDF资料下载
参数资料
| 型号： | IRCS2277S |
| 厂商： | International Rectifier |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | DEMO FOR 3-PHASE/380V MOTOR DRV |
| 标准包装： | 1 |
| 系列： | * |
IR2277S/IR2177S (PbF)
Switching level
Triangular
Phase voltage
Phase current
Current Mean
Fundamental
harmonic
Third
harmonic
Fundamental
harmonic
Third
harmonic
Stage 1 input:
Input signal
components
(1 st and 2 nd
harmonic only)
Stage 1
output
SYNC 1
Error
SYNC 2
Sampling
instant
Sampling
instant
Figure 19: Even harmonic cancellation principle
1.6 Input filter gain setting
2
Sizing tips
G0 and G1 pins are used to change the time
constant of the integrators of the high side input
filter.
To avoid internal saturation of the input filter, G0
and G1 must be connect according to SYNC
frequency as shown in Table 1. A too small time
constant may saturate the internal integrator, while
a large time constant may reduce accuracy.
G0 and G1 do not affect the overall current sensor
gain.
2.1 Bootstrap supply
The V BS1,2,3 voltage provides the supply to the high
side drivers circuitry of the IR2277S/IR2177S. V BS
supply sit on top of the V S voltage and so it must be
floating.
The bootstrap method to generate V BS supply can
be used with IR2277S/IR2177S current sensors.
The bootstrap supply is formed by a diode and a
capacitor connected as in Figure 20.
f PWM
G0 G1
> 16 kHz * V B
16 / 10 kHz V S
10 / 6 kHz V B
< 6 kHz V S
V B
V B
V S
V S
*
40 kHz
Table 1: G0, G1 gain settings
Figure 20: bootstrap supply schematic
17
www.irf.com
相关PDF资料 |
PDF描述 |
|---|---|
| IRDC2085S-DF | BOARD EVAL CONV DC BUS W/IRF6603 |
| IRDC3038 | KIT W/IRU3038 PWM CTRL DDR 14-PI |
| IRDC3039 | BOARD EVAL CTRLR PWM W/IRU3039 |
| IRDC3046 | KIT W/IRU3046 DUAL PWM LDO CTRLR |
| IRDC3048 | KIT W/IRU3048 DUAL PWM LDO CTRLR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRCW0805LF031002BR1 | 制造商:TT Electronics / IRC 功能描述: |
| IRCW0805R033482BR1 | 制造商:TT Electronics / IRC 功能描述: |
| IRCW1206R031210BR1 | 制造商:TT Electronics / IRC 功能描述: |
| IRCWCR0603000ZPI | 制造商:MAJOR 功能描述: |
| IRCZ24 | 制造商:IRF 制造商全称:International Rectifier 功能描述:Power MOSFET(Vdss=55V, Rds(on)=0.040ohm, Id=26A) |
发布紧急采购，3分钟左右您将得到回复。