Power supply is necessary for all electrical and electronic devices to work. In this post i will be concentrating on DC power supply that is required by electronic circuits; these may include AC to DC, DC to DC power supplies Read more....
Friday, March 20, 2020
Monday, March 9, 2020
Display for Embedded Controllers
Display is a major component for Human Machine Interface (HMI). Graphic display's was a major concern in past decade as the technology was not mature. Most of the time projects were managed with 7-segment or 2 line character display which were seen in many public telephone boxes, EPABX, Billing machines... At present if we look at what display you can use with arduino - you will get a list of display that can be used from simple 7-segment to color graphics with I2C, SPI or parallel interface. Read more....
Friday, March 6, 2020
Off board electronic communication
Off board electronic communication are communicating from micro-controller board to another board or Sensor device OR a PC. For this communication we would love to have minimum wires or a wireless connection. Read more....
How to select power supply for my circuits
How to select 12V / 5V power supply for my circuits?
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| Barrel Jack adapter |
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| Micro USB adapter |
Most of the circuits including arduino powered circuits need a 5V power supply. It is good till we develop a board to use the USB power from computer / laptop. Once the development is complete we need a standalone power supply. for this you may need an power adapter, of-course an USB charger will also do the job. If you need a Micro USB connector you can buy it from robu.in. This board a little quality board over the other green color board.
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| AC DC Power Module |
In some cases we want power supply to be housed inside a box, then external power adapter may not be the choice, for this you will get a SMPS module for 3.3V, 5V, 12V from Sunrom. These power supplies are modular and those from HiLink are good but little costly than the open board ones.
If you decide to make your own power supply you can start with the Viper12 / Viper22 IC from ST micro electronics. These IC's are cheap and available in local market. ST provides reference design for both isolated and non-isolated supplies.
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