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參數(shù)資料
| 型號(hào)： | DRM045 |
| 英文描述： | Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board Designer Reference Manual |
| 中文描述： | 使用ASB520 MC68HC908QT2的紅外遙控器參考PC板設(shè)計(jì)參考手冊(cè) |
| 文件頁數(shù)： | 16/80頁 |
| 文件大?。?/td> | 1025K |
| 代理商： | DRM045 |
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Introduction
Designer Reference Manual
DRM040 — Rev 0
16
Introduction
MOTOROLA
In software the instantaneous power is calculated by summing up each
product of voltage and current for a total of 256 samples. After 256
samples the result is divided by a scaling coefficient, called the
calibration coefficient. The coefficient is a scaling factor which also takes
into account analog circuit tolerances. Its nominal value is 8114 (see
Appendix B
for an explanation).
The resulting
time interval. This value is added to the active tariff to calculate the
accumulated energy and divided by 22500 to convert to watt-hours.
See software section for detailed implementation.
represents the average energy over a 160 millisecond
1.2.1 ADC Range
In order to comply with the requirements imposed by the IEC 61036
standard, the current ranges must be measured within the defined error:
+-1%
+-1.5%
The 1,5% error in the lowest current range imposes a dynamic range of
which is between 12 and 13Bits. The A/D converter of the LJ12 has only
a 10-bit resolution, but oversampling and averaging the instantaneous
power over 8 cycles of the input signal, increases the effective resolution
of the converter. To cover the additional current range from to
more bits are required. This is accomplished by attenuating the current
signal by a factor of four before application to the A/D converter inputs
as shown in
Figure 1-4
.
two
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F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DRM10 | 功能描述:DIP 開關(guān)/ SIP 開關(guān) BCD 10 POS RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
| DRM1004 | 功能描述:DIP 開關(guān)/ SIP 開關(guān) ROTARY DIP SWITCH PLASTICSHAFT RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
| DRM101 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Blood Pressure Monitor Using the Flexis QE128 Family |
| DRM10C | 功能描述:SWITCH DIP MINI SHAFT 10POS T/H RoHS:否 類別:開關(guān) >> DIP 系列:DR 特色產(chǎn)品:RDM Series Rotary DIP Switch 標(biāo)準(zhǔn)包裝:70 系列:RDM 電路:十六進(jìn)制 位置數(shù):16 觸點(diǎn)額定電壓:0.1A @ 42VDC 觸動(dòng)器類型:用于工具旋轉(zhuǎn) 觸動(dòng)器電平:凹槽式 安裝類型:通孔 方向:頂部觸動(dòng) 可清洗:是 其它名稱:EG4977-5RDMAR16PIT |
| DRM10C04 | 功能描述:編碼式波段開關(guān) SW DIP MINI SHAFT 10POS T/H RoHS:否 制造商:C&K Components 位置數(shù)量:10 輸出代碼:Binary Coded Decimal 執(zhí)行器:Screwdriver 觸點(diǎn)額定值: 端接類型:Solder Pin 封裝:Tube |
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