参数资料
| 型号： | DM300022 |
| 厂商： | Microchip Technology |
| 文件页数： | 16/56页 |
| 文件大小： | 0K |
| 描述： | MODULE PWR DSPICDEM MC1L LV 3PHS |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电机控制 |
| 嵌入式： | 是，MCU，16 位 |
| 已用 IC / 零件： | dsPIC33FJxxxMC |
| 主要属性： | 3 相低压电源模块 |
| 次要属性： | 运动传感器输入：霍尔传感器或光学编码器 |
| 已供物品： | 子板 |
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dsPICDEM? MC1L 3-Phase Low Voltage Power Module
1.2.4
Power-Up/Power-Down Sequence
The user should ensure that the following sequence, are followed.
1.2.4.1
POWER-UP SEQUENCE
? With the control card plugged in, turn on the power supply feeding the control PCB
(if not already on).
? One or more of the fault lights may illuminate. This is normal.
? Turn on the DC supply to the power module.
? Reset the system by activating the active high ISO_RESET line. The
Control Development Board, this signal is routed to pin 14 of the 30F6010 dsPIC
device, which is on Port RE9. The minimum pulse width for the reset is 2 μ s. The
RESET should be done in coordination with the SPI? handling routine of the
dsPIC device to ensure correct synchronization of the serial interface providing
back” ). The system is now ready to use.
1.2.4.2
POWER-DOWN SEQUENCE
? Stop firing all power devices.
? Turn off the incoming DC supply.
? Wait until the red DC bus LED indicator visible through the ventilation holes in the
top of the unit has gone out. (This will take 5 minutes or less.)
? Turn off the power supply feeding the control card (if required).
1.2.5
Modulating The Power Devices
The Brake chopper switch has been designed so that it may be modulated up to
a maximum frequency of 16 kHz. This frequency limit is chosen for power dissipa-
tion and low voltage power supply consumption reasons. In most braking applications,
a lower modulation frequency will be used, as there is little benefit (apart from acoustic
noise) from modulating at such a high frequency.
The six inverter switches have been designed so that they may be modulated up
to a maximum frequency of 20 kHz. This frequency limit is chosen for power
dissipation and low voltage power supply consumption reasons. Unless extremely low
output current harmonics or very high bandwidth control is required, it is suggested
that a 16 kHz modulation frequency be used. This offers lower loss while still being
inaudible. It also has the advantage that the "dead time" will cause less distortion of
the output voltage.
Given the high side and low side switches of the inverter are connected in series
across the DC bus (see Figure 1-2), both switches should never be turned on at the
same time. Turning both switches on effectively places a short circuit across the DC
bus and is called "shoot-through". Shoot-through should be avoided at all costs. In
order to avoid shoot-through, an appropriate time delay must be inserted between the
turn off command to one device and the turn on command to the other device of the
same inverter leg. This time is called the "dead time". The required dead time
depends on the switching speeds of the power devices and the timing delays due to
the optocouplers and the gate drive circuits. No hardware dead time is included in the
design as it is included as a feature of the Motor Control PWM module of the dsPIC
device. A minimum dead time of 2 μ s should be used . This applies to both turn on
and turn off of both devices. Writing to the appropriate registers in the dsPIC
(DTCON1 and DTCON2) sets the dead time. Refer to the dsPIC30F Family
Reference Manual (DS70046) for details.
DS70097A-page 10
? 2003 Microchip Technology Inc.
相关PDF资料 |
PDF描述 |
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| DM320002 | BOARD EXPANSION PIC32 I/O |
| DM320003-2 | KIT EVAL PIC32 USB II STARTER |
| DM320003 | BOARD DEMO USB PIC32 OTG |
| DM320005 | BOARD EXPANSION FOR PIC32 KIT |
| DM320011 | BOARD AUDIO DEV FOR PIC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DM300023 | 功能描述:开发板和工具包 - PIC / DSPIC dsPICDEM SMPS Buck Demo Brd RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM300024 | 功能描述:开发板和工具包 - PIC / DSPIC dsPICDEM 1.1 GP RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM300027 | 功能描述:开发板和工具包 - PIC / DSPIC 16-bit Starter Demo Board RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM-3-000-K | 制造商:PacTec 功能描述:Case, Plastic; ABS; Black; 11.46 in.; 3.38 in.; 10.4 in.; UL 94-HB Rated 制造商:PacTec 功能描述:ENCLOSURE, DESKTOP, PLASTIC, BLACK; Enclosure Type:Desktop; Enclosure Material:Plastic; Body Color:Black; External Height - Imperial:3.38"; External Height - Metric:86mm; External Width - Imperial:10.4"; External Width - Metric:264mm;RoHS Compliant: Yes |
| DM-300-C | 制造商:Greenlee Textron Inc 功能描述:DMM 1000V RMS |
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