- 您现在的位置：买卖IC网 > PDF目录68816 > 78M6613-IM/F/P (MAXIM INTEGRATED PRODUCTS INC) 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32 PDF资料下载
参数资料
| 型号： | 78M6613-IM/F/P |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32 |
| 封装： | 5 X 5 MM, ROHS COMPLIANT, QFN-32 |
| 文件页数： | 3/33页 |
| 文件大小： | 957K |
| 代理商： | 78M6613-IM/F/P |
第1页第2页当前第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
DS_6613_018
78M6613 Data Sheet
Rev. 1.1
11
2
Functional Description
2.1
Theory of Operation
The energy delivered by a power source into a load can be expressed as:
∫
=
t
dt
t
I
t
V
E
0
)
(
)
(
The following formulae apply for wide band mode (true RMS):
P = ∑
(i(t) * v(t))
Q = √(S2 – P2)
S = V * I
V = √∑
v(t)2
I = √∑
i(t)2
For a practical measurement, not only voltage and current amplitudes, but also phase angles and
harmonic content may change constantly. Thus, simple RMS measurements are inherently inaccurate,
and true RMS measurements must be utilized. A modern solid-state electricity Power and Energy
Measurement IC such as the Teridian 78M6613 functions by emulating the integral operation above, i.e. it
processes current and voltage samples through an ADC at a constant frequency. As long as the ADC
resolution is high enough and the sample frequency is beyond the harmonic range of interest, the current
and voltage samples, multiplied with the time period of sampling will yield an accurate quantity for the
momentary energy. Summing up the momentary energy quantities over time will result in accumulated
energy.
-500
-400
-300
-200
-100
0
100
200
300
400
500
0
5
10
15
20
Current [A]
Voltage [V]
Energy per Interval [Ws]
Accumulated Energy [Ws]
Figure 4: Voltage. Current, Momentary and Accumulated Energy
Figure 4 shows the shapes of V(t), I(t), the momentary power and the accumulated power, resulting from
50 samples of the voltage and current signals over a period of 20 ms. The application of 240 VAC and
100 A results in an accumulation of 480 Ws (= 0.133 Wh) over the 20 ms period, as indicated by the
Accumulated Power curve. The described sampling method works reliably, even in the presence of
dynamic phase shift and harmonic distortion.
For actual measurement equations, refer to the applicable firmware documentation.
相关PDF资料 |
PDF描述 |
|---|---|
| 78M6613-IMR/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32 |
| 78M6613-IMR/F/P | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32 |
| 78M6613-IM/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32 |
| 7901502EA | 4-CHANNEL, DIFFERENTIAL MULTIPLEXER, CDIP16 |
| 798R07-001 | SPECIALTY CONSUMER CIRCUIT, SMA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 78M6613-IMR | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Single-Phase AC Power Measurement IC |
| 78M6613-IMR/F | 功能描述:计量片上系统 - SoC Sgl Phase AC Pwr Measurement IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 78M6613-IMR/F/P | 制造商:Maxim Integrated Products 功能描述:PROGRAMMED - LEAD FREE/TAPE & REEL - Tape and Reel |
| 78M6613-IMR/F/P48 | 制造商:Maxim Integrated Products 功能描述:SINGLE-PHASE AC POWER-MEASUREMENT IC, 4800 BAUD - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC SENSOR ISOLATED 32QFN 制造商:Maxim Integrated Products 功能描述:8-Bit Programmable Timing Element |
| 78M6613-IMR/F/PC1 | 功能描述:IC SENSOR ISOLATED 32QFN 制造商:maxim integrated 系列:Teridian?? 包装:带卷（TR） 零件状态:停产 输入阻抗:40 千欧 ~ 90 千欧 测量误差:0.5% 电压 - I/O 高:2V 电压 - I/O 低:0.8V 电流 - 电源:9.1mA 电压 - 电源:3 V ~ 3.6 V 表计类型:单相 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:32-VFQFN 裸露焊盘 供应商器件封装:32-QFN（5x5） 标准包装:2,500 |
发布紧急采购，3分钟左右您将得到回复。