收藏本站
CONN2.) Thus all cells can be set up for the same voltage, or individually varied to
simulate cell imbalance conditions. The constant current source is also adjustable,
permitting all cells to increase or decrease in voltage while maintaining balance
between them.
Adjusting VR1-4 clockwise increases the voltage for the corresponding cell. Likewise,
adjusting VR5 clockwise increases the current flow and thus the voltage of the entire
cell stack. Adjusting VR5 to its maximum clockwise setting provides maximum
current, limited to produce approximately 5.5VDC on each cell. Due to component
tolerances, it may be necessary to avoid using the maximum possible setting of VR5
so as not to exceed 5.5VDC on any cell input. Note that the factory setting for VR1-5
gives a cell stack voltage too low for the smart battery to start properly.
For optimum adjustment range, set VR1-4 to their maximum clockwise setting, and
adjust VR5 so that about 5.25V is present on one of the cell connections. Next,
measure the simulated cell voltages at CONN2 and determine which of the simulated
cells has the lowest voltage. Adjust the other three remaining cells to match it. The
system is now calibrated. VR5 can now be used to adjust the voltage on all cells
simultaneously.
To configure the ATAVRSB100 for cell voltage simulation, all five jumpers of J3 must
be installed. This ties the outputs of the buffered voltage divider stages to the cell
inputs. Additionally an external power supply must be connected to CONN2 pin 1
(GND) and CONN2 pin 2 (positive). The voltage supplied should be the maximum
pack voltage plus about 2.0V. Example: a 4-cell stack is to be simulated, where the
maximum voltage on each cell is 4.20V. The power supply should be set for
4 ? 4 . 20 V + 2 . 0 V = 18 . 8 V .
WARNING:
Do not exceed 24V! Doing so will damage the ATAVRSB100 kit.
Note that if cell 3 and/or cell 4 are not required, the corresponding potentiometers
VR3 and/or VR4 can be adjusted to their minimum setting, yielding zero volts.
2.5 Current simulation
The ATAVRSB100 includes a mechanism to simulate pack current. R21 and VR6
form an adjustable voltage divider that will produce 0.000 to 0.150VDC. By
connecting a separate 5V regulated supply to CONN2 pin 11 and CONN2 pin 12 (as
shown on the SB100 board), and also shorting JB4 pin 3 and 5, and JB4 pin 4 and 6,
this adjustable voltage is connected to the Coulomb Counter analog inputs of the
ATmega406 device. By controlling the polarity of the external 5V supply, you can
simulate either charging (CONN2 pin 11 = -5V), or discharging (CONN2 pin 11 =
P.S.+5V). Note that CONN2 pin 12 is internally connected to GND.
2.6 SMBus interface
The SMBus circuitry includes zener diodes and current limiting resistors to prevent
ESD from damaging the ATmega406. Increasing the resistance of R23 and R24 may
result in non-compliance with the SMBus specification. For proper operation of the
TWI Bus Connect/Disconnect Interrupt circuitry, pull-down resistors (2M-ohm) are
included to force both SCL and SDA signals low when the pack is disconnected.
For Master Mode operation on SMBus, it is required to monitor the bus for activity
before starting a transmission. PA6, as one possibility, can be configured to detect
activity on the SMBCLK line through the Pin-Change capability of the ATmega406
12
AVR454
2598C-AVR-06/06
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
ATAVRSB200 KIT EVAL FOR AVR SMART BATTERY
ATAVRSB201 KIT REF FOR AVR SMART BATTERY
ATDH1150USB ACCY USB CABLE JTAG ISP AT18F
ATDVK90CAN1 KIT DEV FOR AT90CAN128 MCU
ATEVK1104AU KIT EVAL AT32UC3A3256AU
ATEVK1105AU KIT EVAL AT32UC3A0512AU
ATEVK525 ADD ON KIT FOR STK525
ATEVK527 KIT EVAL PWM AVR USB 4 SERIES
相关代理商/技术参数
ATAVRSB200 功能描述:开发板和工具包 - AVR Development platform for SB20x ref design RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V
ATAVRSB201 功能描述:开发板和工具包 - AVR Development kit for ATMEGA16HVA RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V
ATAVRSB202 功能描述:开发板和工具包 - AVR Battery Mgmt Eval kit for ATMEGA32HVB RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V
ATAVRSBIN1 功能描述:多功能传感器开发工具 9DOF Inertial Sensor Board 1 RoHS:否 制造商:Texas Instruments 工具用于评估:LMP91200 接口类型:SPI 工作电压:1.8 V to 5.5 V 最大工作温度:
ATAVRSBIN2 功能描述:多功能传感器开发工具 9DOF Inertial Sensor Board 2 RoHS:否 制造商:Texas Instruments 工具用于评估:LMP91200 接口类型:SPI 工作电压:1.8 V to 5.5 V 最大工作温度:
ATAVRSBLP1 功能描述:光学传感器开发工具 Ambient Light and Proximity Snsr Brd RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度:
ATAVRSBPR1 功能描述:压力传感器开发工具 Barometric Pressure Sensor Board 1 RoHS:否 制造商:Freescale Semiconductor 工具用于评估:MPL3115A2 接口类型:USB 最大工作温度:
ATAVRSECURITYX 功能描述:安全/ 验证开发工具 Security Module Kit for Xplain Series RoHS:否 制造商:Digi International 产品:Development Kits 工具用于评估:XEB-AW140 接口类型:SPI, USB 工作电源电压:3.1 V to 3.6 V