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Author Topic: about energy measurement IC  (Read 2369 times)
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gabriel
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« on: March 29, 2013, 07:28:23 07:28 »

Hello:

do you know any energy measurement IC in DIP package? all that I know comes in SO.

Thank you
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PaulC
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« Reply #1 on: March 29, 2013, 12:20:39 12:20 »

Hi gabriel
when you say energy measurement - please give us an idea (what you was considering)..
are you looking for adc
or maybe :
ADE5166/ADE5169/ADE5566/ADE5569
78M6612
ADE5166:  Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver
MCP3909/PIC18F85J90 Single Phase Energy Meter Reference Design
MSP430F6736: Single-phase energy meter IC System on Chip
STPM11, STPM12, STPM13, STPM14: Single phase energy metering IC with pulsed output and digital calibration
STPM10: Programmable single-phase energy metering IC with tamper detection

or maybe a so to dip adapter may be of use.. (ebay do plenty of different types)..
hxxp://www.ebay.ie/sch/i.html?_trksid=p3907.m570.l1313&_nkw=SO+to+dip+adapter&_sacat=0&_from=R40
i often use these for prototyping to save time in designs..


Posted on: 29-03-2013, 12:11:02 - Automerged

Hi gabriel
just found this also


Energy Measurement In a Complete Package

Looking for a way to quickly and easily measure power input or output, well these IC's might just fit the bill.

Analog Devices, Inc. have introduced the AD7751 and AD7755, additions to the company's family of power measurement data converters. These data acquisition processors are designed for metering active energy at the industry's lowest cost. They interface to 200 micro-ohm shunts and directly drive stepper motor counters. Other members of the AD775x family (soon to be introduced) will contain a serial port interface for bi-directional communication with a micro-controller or non-volatile memory. The AD7751 is a highly accurate, fault-tolerant energy measurement integrated circuit, intended for use in energy meters on two-wire distribution systems. In addition to a voltage channel, the AD7751 has two current channels to allow for continuous monitoring of both the phase and neutral (return) current. If currents differ by more than 12.5%, a fault is indicated, but the AD7751 continues to bill accurately, using the larger of the two currents. The AD7755 is a simplified, lower cost version of the AD7751. It is a highly accurate energy measurement integrated circuit with a wide dynamic range that uses one current channel and one voltage channel. The current channel interfaces nicely to current transformers, Hall Effect sensors, or 200 micro-ohm shunts. These pin-compatible devices feature two sets of frequency outputs that consist of fixed-width pulse streams whose frequencies are pin-selectable. Their frequencies represent the product of current and voltage. Outputs span a broad range, from low-frequency outputs, suitable for stepping motors, to the higher frequency pulse streams, appropriate for calibration and test. Representation of 4-quadrant multiplication can be obtained by reading the magnitude-only outputs and monitoring the reverse-power logic output. The reverse-power indicator becomes active when negative power is detected. The AD7751 and AD7755 were designed with a unique switched-capacitor architecture that allows a bipolar analog input on a single 5-volt power supply. Nonlinearity for either input is less than 0.05%, maximum. These products are enhanced with an integrated power supply monitor to ensure correct operation during power up and power down. Fabricated on 0.6 CMOS technology for low cost and low power consumption, the AD7751 and AD7755 are available in 24-pin SSOP and DIP packages.

Posted on: 29-03-2013, 12:15:59 - Automerged

me again
The FM7755 is a high accuracy electrical energymeasurement IC, it adapts CMOS technology.
The analog circuitry used in the FM7755 is in the data sampling, ADC and reference voltage supply.
All other signal processing (e.g., multiplication and filtering)is carried out in the digital domain. This
approach provides superior stability and accuracy over extremes in environmental conditions and
over time. The energy meter using FM7755 has several advantages such as low cost, high
precision, low power consumption, good reliability and well environment adaptability. It applies for
energy metering of single-phase two wires customs.  24-lead DIP or SSOP packages
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gabriel
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« Reply #2 on: March 29, 2013, 05:09:49 17:09 »

thanks so much
I'm using MCP3909 and I've some problems with soldering it.

Thanks again
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jumulab
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« Reply #3 on: March 29, 2013, 05:49:53 17:49 »

Hi Gabriel.

take a view to IDT energy meters  SOC IDT90E22, 90EXX  and 90E36A.
We are energy meters manufacturers, and use these chips.
The access is trought SPI bus, and are easily to put at work.
Lucky in your job!

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solutions
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« Reply #4 on: March 29, 2013, 07:48:02 19:48 »

thanks so much
I'm using MCP3909 and I've some problems with soldering it.

Thanks again


With your continuing lack of any detail as to the "problem" you are having, I can only suggest this: have you tried applying heat?
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PaulC
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« Reply #5 on: March 29, 2013, 10:20:18 22:20 »

old school way is alternate leg up
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DreamCat
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« Reply #6 on: March 30, 2013, 04:41:58 04:41 »

I think you should better improve your soldering skill,
there are a few video about smd soldering on youtube.
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May be I expressed the wrong meaning, sorry for my bad english. Please correct it for me if you can.
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