参数资料
| 型号： | CBC-EVAL-08 |
| 厂商： | Cymbet Corporation |
| 文件页数： | 7/11页 |
| 文件大小： | 0K |
| 描述： | ENERCHIP EH SEH EVAL KIT |
| 产品目录绘图： | CBC-EVAL-08 Module |
| 特色产品： | EnerChip? EH Solar Energy Harvesting Evaluation Kit |
| 标准包装： | 1 |
| 系列： | EnerChip™ EH |
| 主要目的： | 电源管理，可再生能源 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | CBC5300 |
| 主要属性： | 薄膜充电式固态电池 |
| 次要属性： | 太阳能收集器 |
| 已供物品： | 板 |
| 相关产品： | 859-1009-6-ND - IC BATT SOLID ST ENERCHIP 16QFN 859-1009-1-ND - IC BATT SOLID ST ENERCHIP 16QFN 859-1009-2-ND - IC BATT SOLID ST ENERCHIP 16QFN 859-1005-5-ND - IC BATT SOLID ST ENERCHIP 16QFN |
| 其它名称： | 859-1002 |
EnerChip Solar Energy Harvesting Demo Kit
Guidelines for Attaching Other Energy Harvesting Transducers
Other energy harvesting transducers (e.g., inductive, piezoelectric, thermoelectric) may be attached to the CBC-
EVAL-08. As configured, the CBC-EVAL-08 will operate with many other transducer types. However, performance
specifications of these other transducers - namely output impedance - will affect the power conversion
efficiency of the CBC-EVAL-08 kit as designed. Please contact Cymbet Applications Engineering at the phone
number shown below to discuss your specific application and desired alternate transducer(s).
The CBC5300 module is designed to work with transducers having an output impedance over the range of 50?
to 4k? and an input voltage range of 270mV to 1.5V The minimum open circuit voltage to start operation is
700mV. The nominal voltage and impedance is 800mV at 1k?. Operating characteristics for most transducer
types are typically available from the manufacturer’s data sheet. Output impedance, operating voltage, and
peak power point can also be verified by empirical measurements. To do this, measure the load voltage and
current as a variable load impedance across the transducer is swept over a broad enough range where the
peak power point can be found by finding the maximum product of the measured load voltage and current.
To configure the CBC5300 to work with a given transducer, the optimal transducer operating voltage point must
first be obtained though the manufacturer’s data sheet or from empirical measurements. Next calculate the
values needed for a voltage divider to set the operating voltage point on the V OPER pin (pin 10 of J6). The top of
the voltage divider uses V REG (pin 11 of J6) as its voltage source; the bottom of the voltage divider is connected
to ground. V OPER is equal to V REG * (R2 / (R1 + R2)), where V REG is nominally 4.06V and R2 (bottom resistor)
is in the range of 500k? to 1M? with the optimal value around 750k?. Note: Better circuit performance (i.e.,
less input ripple voltage) will be obtained if R2 is made smaller than 750k?. A more useful formula is: R1 =
R2 * ((V REG / V OPER ) - 1). Example: For a 1k? photovoltaic cell with operating voltage of 800mV, R1 can be
determined as R1 = 732k? * ((4.06V / 800mV) - 1) = 2.98M?. A 3.01M? resistor is the nearest standard
value. R2 was chosen as a standard resistor value. 750k? for R2 is also a standard resistor value but the
V OPER voltage will be further away from nominal due to the standard resistor values available for R1.
Capacitor C1 (22μF) is used to set the bandwidth of the boost converter control loop. If a low impedance
transducer is used the value of C1 might have to be reduced in value. This can be verified using an oscilloscope
to check the waveform on GATE (pin 3 of J6). The waveform should be three pulses followed by a longer
interval, followed again by three pulses. The three pulses will have approximately 16.7μs of high duration
followed by 16.7μs of low duration. If more than three pulses are in the waveform then the value of C1 should
be reduced to obtain the nominal waveform.
When using a power transducer other than the solar cell supplied with the CBC-EVAL-08, it is recommended
that the solar cell be isolated from the input stage prior to connecting the other transducer. This is easily
done by cutting trace connector J7. The alternate transducer can then be used as the input power transducer
by connecting it across connector PT1 if using an AC transducer such as a piezoelectric element, or, across
connector J8 if using a DC transducer - for example, a different solar cell. For more efficient performance, follow
the recommendations given earlier in this section. If multiple transducer types are to be used - for example,
a solar cell and a piezoelectric transducer, or a solar cell and a thermoelectric generator - contact Cymbet
Applications Engineering for design support.
System Level Considerations when Using a Low Power Energy Harvester
The CBC5300 is capable of supplying 10s to 100s of μW of continuous power to the load. Most applications
operating with radios and microcontrollers typically need 10s to 100s of mW of power under peak load
conditions. The disparity between what is available and what is needed can be made up by limiting the
amount of time the load is powered and waiting sufficient time for the energy harvester to replenish the energy
storage device before the subsequent operation commences. In typical remote RF sensor applications, the
‘on’ time will be on the order of 5-20ms, with an ‘off’ time of several seconds to several hours depending on
the application and available energy source. The duty cycle is an important consideration when designing a
wireless system.
DS-72-08 Rev18
?2009 Cymbet Corporation ? Tel: +1-763-633-1780 ? www.cymbet.com
Page 7 of 11
相关PDF资料 |
PDF描述 |
|---|---|
| CBC-EVAL-09 | ENERCHIP EP ENERGY HARVEST EVAL |
| CBC-EVAL-11 | INDUCTIVE CHARGING EVAL KIT |
| CBJ157 | TRS JACK STR PCB SLD POT 3-LUG |
| CBJ70 | TRB JACK STR PCB 3-LUG |
| CBJR12 | MINI-WECO PATCH JACK 75OHM R/A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CBC-EVAL-08_10 | 制造商:CYMBET 制造商全称:CYMBET 功能描述:EnerChipa?￠ EH Solar Energy Harvester Evaluation Kit |
| CBC-EVAL-09 | 功能描述:电源管理IC开发工具 EnerChip EP Universal EH Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| CBC-EVAL-09 - DSC | 功能描述:CBC915-ACA, CBC51100 EnerChip? Series Power Management, Energy Harvesting Evaluation Board 制造商:cymbet corporation 系列:EnerChip?? 零件状态:有效 主要用途:电源管理，能量收集 嵌入式:否 使用的 IC/零件:CBC915-ACA，CBC51100 主要属性:EM/RF，太阳能，热能，振动能量处理器 辅助属性:- 所含物品:板 标准包装:1 |
| CBC-EVAL-09_13 | 制造商:CYMBET 制造商全称:CYMBET 功能描述:EnerChip EP Universal Energy Harvester Eval Kit |
| CBC-EVAL-10 | 功能描述:电源管理IC开发工具 EnerChip CCEH EH Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
发布紧急采购，3分钟左右您将得到回复。