SM12 chip ? device?

Ty Tower's picture

Offline

Joined: Feb 27, 2020

Replies: 6
SM12 chip ? device?
February 27, 2020 - 11:58am

I have a circuit with a dc photovoltaic string of about 280 volts feeding into this. The circuit calls for a SM12 chip with I think 4 pins. I guessed it was a voltage regulator of some kind but all the googled datasheets give different devices and none seem to fit this .
Can anyone tell me what it would be and where I would get one?

Its marked Pin 1 is L, Pin 2 is N, Pin 3 is +12 v, Pin 4 is 0 v Just noticed in the notes he says " A small Chinese postage stamp sized 12v dc power supply provides power ." Could these two be the same thing .

Ty Tower's picture

Offline

Joined: Feb 27, 2020

Replies: 6
Oh crikey one of those sites
February 27, 2020 - 12:00pm

Oh crikey one of those sites !

How on earth do I fix my errors if I can't edit?

 

The title should be SM12

Ty Tower's picture

Offline

Joined: Feb 27, 2020

Replies: 6
Here is a pic of it -No cant upload a file CHRIST
February 27, 2020 - 12:04pm

Here is a pic of it -No cant upload a file CHRIST

Bradyen's picture

Offline

Joined: Aug 14, 2018

Replies: 44
Uploading image on forums
February 27, 2020 - 2:29pm

You can upload image by using the IMCE. Clicking on this icon will open another dialog box were you can click on upload and browse for the image to be uploaded 

Ty Tower's picture

Offline

Joined: Feb 27, 2020

Replies: 6
Maybe I get an edit button after 4 or 5 posts.
February 27, 2020 - 12:06pm

Maybe I get an edit button after 4 or 5 posts.

Debasis Parida's picture

Offline

Joined: Aug 22, 2019

Replies: 124
Upload a picture of IC
February 27, 2020 - 11:22pm

Please upload a picture of the IC.

Ty Tower's picture

Offline

Joined: Feb 27, 2020

Replies: 6
(No subject)
February 29, 2020 - 9:37am

2019-07-16_164431_SolarHotWaterboardschematic.gif.jpeg

Ty Tower's picture

Offline

Joined: Feb 27, 2020

Replies: 6
OK so circuit uploaded for 3
March 3, 2020 - 12:01pm

OK so circuit uploaded for 3 days . What's that achieved?

Ty Tower's picture

Offline

Joined: Feb 27, 2020

Replies: 6
Voltage from Photovoltaic s
March 3, 2020 - 12:04pm

Voltage from Photovoltaic s about  280 V DC  Heater element  240 V  Big capacitor across element .

So what I don't understand is how the 555 timer can withstand the high voltage.?

jaksonlee's picture

Offline

Joined: Nov 07, 2019

Replies: 122
A system on a chip is an
April 20, 2020 - 5:28pm

A system on a chip is an integrated circuit that integrates all or most components of a computer or other electronic system. These components almost always include a central processing unit  memory, input/output ports and secondary storage – all on a single substrate or microchip, the size of a coin.It must contain digital, analog, mixed-signal, and often radio frequency signal processing functions, otherwise it will only be considered as an "Application Processor". As they are integrated on a single substrate, SoCs consume much less power and take up much less area than multi-chip designs with equivalent functionality. Because of this, SoCs are very common in the mobile computing and edge computing markets.
Systems on Chip are in contrast to the common traditional motherboard-based PC architecture, which separates components based on function and connects them through a central interfacing circuit board.