CS Single Phase Bi-directional Power/energy ic. Features. Description. The is a highly integrated Analog-to-Digital Converter (ADC) which combines two. CS datasheet, CS pdf, CS data sheet, datasheet, data sheet, pdf, Cirrus Logic, Single Phase Bi-Directional Power/Energy IC. CS Datasheet, CS PDF, CS Data sheet, CS manual, CS pdf, CS, datenblatt, Electronics CS, alldatasheet, free, datasheet.

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For the low price, how is the current measured. Notify me of new posts via email. When in service, current from the rear male prong connects to the obscured red wire, passes through the resistive shunt and then through the other red wire to the front female contacts. At that price, I was curious, how does someone manufacture and sell for some sort of profit a device that can measure up to W of power.

There is some scope for customisation here. I found it easier to prise the unit apart from the bottom.

CS5460 Datasheet PDF

Or a resistive shunt which would be much cheaper? The two heavy gauge wires are the active connection. Check out this linkit has some good overview information regarding mains rated caps.


Current measurement is performed using a resistive shunt. Once the case is apart, the internals are quite compact.

This device would be interfacing to the CS via the serial interface. You are commenting using your Facebook account. Reviewing the datasheetthe device is a dedicated chip for performing voltage, current and energy consumption calculations.

Does the device use cs540 current transformer CT? You are commenting using your WordPress. This would be used for the auto-boot function described in the CS cs5640 and it would contain calibration and configuration settings. Post was not sent – check your email addresses!

Energy Meter Teardown

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Also, is there any scope to hack the device, similar to the Tweet-a-Watt? A bonus is that the serial interface pins are clearly labelled on the PCB adjacent to the ribbon cable on the top right.


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A flat blade screwdriver is useful for prising the case apart. This site uses Akismet to reduce spam.

CSA | Cirrus Logic

Immediately, a resistive shunt used to measure current can datwsheet seen on the bottom right of the green PCB. Anyway, a resistive shunt is used for the low cost current measurement and a custom IC handles all the power measurement calculations.

It appears that the circuit is using an X2 type capacitor — used to filter out differential mode noise and is connected between active and neutral. But, I am aware there are some requirements relating to the types of capacitors that are used. Is there some sort of custom IC performing the energy measurement? Share your thoughts Cancel reply Enter your comment here Fill in your details below or click an icon to log in: Learn how your comment data is processed.