- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385566 > MC1H3 (Microchip Technology Inc.) High Voltage Power Module Users Guide PDF資料下載
參數(shù)資料
| 型號： | MC1H3 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | High Voltage Power Module Users Guide |
| 中文描述： | 高壓電源模塊用戶指南 |
| 文件頁數(shù)： | 30/60頁 |
| 文件大?。?/td> | 1522K |
| 代理商： | MC1H3 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁當(dāng)前第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
dsPICDEM MC1H 3-Phase High Voltage Power Module
DS70096A-page 24
2003 Microchip Technology Inc.
TABLE 1-5:
DC BUS SHUNT RESISTOR FEEDBACK
From this table it is clear that bipolar sensing requires with the same scaling as that
used for the inverter leg shunts. It can be seen that for the 000 and 111 conditions
(which corresponds to zero output phase voltage), no information is available. This
can cause considerable problems if operation at low output voltages is required when
using sinusoidal modulation.
Instead of actually physically implementing the bus shunt, in this design, the signal
has been derived as the sum of the three inverter leg shunts. In this way, power circuit
layout was not compromised. In a commercial application, it is normal to implement all
three leg shunts or the bus shunt, but not both schemes. The summing amplifier
circuit used can be seen on Appendix A, Sheet 3.
1.4.6.4
BRAKE SHUNT RESISTOR FEEDBACK
Knowledge of the brake resistor current magnitude is not required for control of the
DC bus voltage with a brake chopper. Only feedback of the DC bus magnitude is
required. Knowledge of the brake resistor value and the applied PWM can be used to
determine peak and average current flowing for thermal protection of both the resistor
and the power devices. However, knowledge of the brake chopper current is useful for
protection of the switch should a wiring fault occur or the resistor fail. Although a fuse
could be used it is often difficult to design and expensive requiring very fast acting
types. In this instance instead of a fuse, the switch current is monitored by a shunt
between the emitter and the -DC bus in exactly the same way as used for the inverter.
This is used for an over-current trip and is also made available as an optional
feedback signal. Thus, the brake chopper can also be used as either an open or
closed loop, low-side chopper for single quadrant applications. The differential
amplifier circuit is shown on Appendix A, Sheet 3. See
Section
1.4.6.1 “Introduction”
for a more detailed explanation.
1.4.7
Voltage Feedback (Appendix A, Sheets 1, 6 and 7)
1.4.7.1
INTRODUCTION
Provision has been made for three different types of voltage feedback:
DC bus voltage feedback – This is required for regulation via the brake chopper or
the active Power Factor Correction (PFC) circuit. It is also used to compensate for
variations in the inverter output voltages that occur due to any ripple on the DC
bus and as a FAULT trip.
Rectified mains voltage feedback (|VAC|) – This is required for synchronization
and shaping of the input current by the active PFC circuit.
Inverter output voltage feedback – As well as providing the feedback signal a
comparator circuit is included for sensorless operation.
The first two of these signals are available as isolated signals, whereas the inverter
output voltages are only available when the system is used in the non-isolated manner
(see
Section 1.2.6.3 “Non-isolated Feedback”
and
Section 1.5.3.4 “Accessing
the Additional (non-isolated) Feedback Signals”
).
Fire R Top
Phase Y Top
Phase B Top
DC Bus Shunt
0
0
0
0
0
0
1
+IB
0
1
0
+IY
0
1
1
-IR
1
0
0
+IR
1
0
1
-IY
1
1
0
-IB
1
1
1
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC33023DWG | High Speed Single−Ended PWM Controller |
| MC33023DWR2 | High Speed Single−Ended PWM Controller |
| MC33023DWR2G | High Speed Single−Ended PWM Controller |
| MC33025DWG | High Speed Double−Ended PWM Controller |
| MC33025DWR2 | High Speed Double−Ended PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC1JJN0600 | 功能描述:環(huán)形公制連接器 M40 C Straight 6 Position Extension RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點(diǎn)數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1JJN0800 | 功能描述:環(huán)形公制連接器 M40 C Straight Extension 8 Pos. RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點(diǎn)數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1LKN0600 | 功能描述:環(huán)形公制連接器 M40 C Straight Recpt 6 Position RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點(diǎn)數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1LKN0800 | 功能描述:環(huán)形公制連接器 M40 C Straight Recpt 8 Position RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點(diǎn)數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1M | 制造商:G & J HALL 功能描述:STEP DRILL 4-12MM 1MM STEP 制造商:G & J HALL 功能描述:STEP DRILL, 4-12MM, 1MM STEP 制造商:G & J HALL 功能描述:STEP DRILL, 4-12MM, 1MM STEP; Drill Bit Size Metric:4mm; Overall Length:75.5mm; SVHC:No SVHC (19-Dec-2012); Drill Bit Type:Step; Material:Steel; Material Thickness Max:5mm; Range:4mm - 12mm; Range:4mm - 12mm; Shank Dia:6mm; S ;RoHS Compliant: NA |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。