Or a resistive shunt which would be much cheaper? Notify me of new posts via email.
This device would be interfacing to the CS via the serial interface. Check out this linkit has some good overview dataaheet regarding mains rated caps.
Single-Phase, Bi-Directional Power/Energy IC
I found it easier to prise the unit apart from the bottom. There dataheet some scope for customisation here. You are commenting using your Twitter account. Fill in your details below or click an icon to log in: This site uses Akismet to reduce spam. It appears that the circuit is using an X2 type capacitor — used to filter out differential mode noise and is connected between datashwet and neutral.
Learn how your comment data is processed. Anyway, a resistive shunt is used for cd5460 low cost current measurement and a custom IC handles all the power measurement calculations. Email required Address never made public.
A flat blade screwdriver is daatasheet for prising the case apart. 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.
Does the device use a current transformer CT?
Is there some sort of custom IC performing the energy measurement? Immediately, a resistive shunt used to measure current can be seen on the bottom right of the green PCB.
Once the case is apart, the internals are quite compact. A bonus is that the serial interface pins are clearly labelled on the PCB adjacent to the ribbon cable on the top right. Share your thoughts Cancel reply Enter your comment here Current dtasheet is performed using a resistive shunt.
This would be used for the auto-boot function described in the CS datasheet and it would contain calibration and configuration settings. Ca5460, your blog cannot share posts by email.
The two heavy gauge wires are the active connection. Reviewing the datasheetthe device eatasheet a dedicated chip for performing voltage, current and energy consumption calculations. But, I am aware there are some requirements relating to the types of capacitors that are used. You are commenting using your Facebook account.
For the low price, how is the current measured. 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. Also, is there any scope to hack the device, similar to the Tweet-a-Watt? Post was not sent – check your email addresses!