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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)： | 40/60頁 |
| 文件大?。?/td> | 1522K |
| 代理商： | MC1H3 |
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dsPICDEM MC1H 3-Phase High Voltage Power Module
DS70096A-page 34
2003 Microchip Technology Inc.
Removing the PFC inductor from the circuit:
Follow the procedure given in
Section 1.5.2 “Accessing The System”
for
accessing the unit.
De-solder L1. This can be done from the top of the PCB.
Solder a wire between J4 and J6. The wire size should be 1 mm
2
(18 AWG) with a
minimum voltage rating of 600V and suitable for operation up to 105°C. Note that
the wire should be no longer than 75 mm (3") in length and should be cropped to
ensure that the maximum length of lead protruding below the PCB is 4 mm.
If required, change the current scaling of U2 as given in
Section 1.5.3 “Changing
Current Feedback and Trip Scaling”
.
If required, replace the input fuse with a 7-8A part of the same type (Time Lag,
High Breaking Capacity and 250V or greater voltage rating).
Once the modification is complete, install the lid ensuring all the screws are
replaced.
Note that the maximum continuous limit on input current increases to 7A (RMS)
limited by the soft start NTC.
1.5.3.4
ACCESSING THE ADDITIONAL (NON-ISOLATED) FEEDBACK SIGNALS
All the non-isolated feedback signals are brought to a series of links that run along the
edge of the isolation barrier. In order to access these signals, the user should rigidly
carry out the procedure given below. Failure to do so could represent a safety hazard
to the user as the isolation barrier is bridged.
Follow the procedure given in
Section 1.5.2 “Accessing The System”
for
accessing the unit.
Disconnect the input wiring from the AC supply outlet.
Wire in a safety isolation transformer with a suitable rating between the AC supply
outlet and the AC input to the system. The supply to the unit should now be
“floating”.
The user should satisfy themselves that the isolation transformer is wired correctly
and the insulation is intact.
Ensure that the earth (ground) continuity is maintained to the unit.
Solder a wire between J13 and J5. The wire should be 1.0-1.5 mm
2
(18-16 AWG)
with a minimum voltage rating of 600V and suitable for operation up to 105°C. It
should be the standard color used for earth (ground) cabling in the user's country
(e.g., green for U.S.). This link is connecting the -DC bus to the incoming earth
(ground).
In order to make the links for the non-isolated signals; it is recommended that two
0.3" pitch, 14-pin DIL resistor packages be used. These should be of the
“straight-through” type with 7 independent resistors. The suggested value is
330
, as this will provide some ESD protection without too high of a source
impedance being introduced. Note that LK28 has no circuit connections and is
provided to allow the second DIL resistor package to be installed. If the user
decides to fit links or individual resistors, these should be installed so that not
more than 4 mm of lead protrude beneath the PCB.
Note that all signals to and from the system are now referenced to the -DC bus
that is at earth (ground) potential. The isolation transformer is providing the safety
isolation. The digital 0V of the control card is permanently connected to the
enclosure chassis and is therefore also referenced to ground.
Once the modification is complete, install the lid ensuring all the screws are
replaced.
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| 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 觸點數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
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