Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
The maximum power delivery of this power supply is 84W, which means it can handle 7A continuously at 12V output. The transformer can deliver higher currents, however, the educational purpose (hand winding of the transformer) and thermal stress on the switching controller were considered (the...
So I'm trying to learn power supply design. I'm playing with some SMPS examples and tutorials. The examples I have found just show a generic load, capacitive load, or a resistive load. I've even seen resistors in parallel w/ a current source.
How does one typically model a microcontroller...
The core element of any electronic device is the power supply. Any instability or malfunction of the power supply causes the device to malfunction or demonstrate weird behavior. In some sensitive applications, we need a dual voltage-rail power supply to prepare a high current and low noise...
Good evening,
I have recently inherited a table lamp - https://www.amazon.co.uk/gp/product/B0B3LPDFST/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
which came with a power supply (see photo). The power supply is rated at 11V at 0.5A, 5.5W max, max 12V.
The cable was too short so I bought a...
A power supply is an essential tool on every electronics bench. The TPS54202 is a highly efficient 2A synchronous buck converter with a wide 28V input voltage range and low EMI figures, making it suitable for various applications. These features make the TPS54202 an excellent choice for building...
Hi everyone,
I have a CDA HVN91FR induction hob that partly works.
2 hobs (connected to one PCB board) are not working. The other 3 are.
Can't see any visual damage/problems.
Upon closer inspection, the power supplied to the rectifier in the 'dead' PCB seems too high.
In the working PCB board...
Hi
I have a question about switching power supply 5v 30 amps.
When I'm connecting it to tungsten filament wire 0.5 mm 3 cm long , after a time the power supply stops working. I think this is because of short protection. Are there any way to bypass this or you can advise me with another type of...
There is a drone which I'm experimenting with and want to move from batteries to a 2-15 meters 14AWG tethered cable.
The drone voltage is 15-21 Volts and consumes up to 200 Amps.
What would be the best method of searching for and the best brand, model and condition new or used, to find a good...
how risky is building a 5v 2Amp usb charger without any handshake capability? Would devices just pull the amps that they need/can handle, or am I running the risk of breaking devices?
I am a computer technician with some electronics understanding, but not enough to build circuits on my own. I have built a 5-node cluster computer out of old Acer Aspire One Netbooks just for fun but I wanted to make a new power supply for it to reduce some of the clutter. I want to have one...
For power supply engineers, we look at waveforms many times, including input waveforms, MOS switching waveforms, current waveforms, output diode waveforms, chip waveforms, and GS waveforms of MOS tubes. Let’s take the GS waveform of the switch as an example to talk about the GS waveform.
When...
Please I have some couple of 3.6v 3Ah cylindrical li-ion battery, but since I bought them, charging it became a huge problem. I first connected a single one to a 2A infinix phone charger (made in china. According to the ratings, it capable of adjusting output current and voltage to load)thinking...
Hi there,
since this is my first post in this forum, I want to introduce myself first.
I am working as a foreign Community Developer and in Disaster relief in the small mountainous country of Lesotho, in southern Africa.
I am a qualified electrician, have limited equipment to test onside and...
Hi all, I recently came into possession of an old B+K 1650 Tri-Output Power Supply that has seen better days, and I would love some help with getting it back to normal again. There are pictures and a video, as well as links to the schematic, user's manual, and parts list in this Imgur album.
I...
Hi I need Help I’m trying to make a regulator that can take variable voltage from 30v to 100v ac input to about 15v dc output if any one can help point me in the right direction or have a circuit diagram that would be great
Hi,
I need help to anyone who can help me :)
I want to connect a Peltier Element to a 3.3V power supply . I use TEC-40-33-127.
I attached below some specifications of the device.
I need your help because I don't know how to make the circuit schematic I don't know what values to choose from...
Hi, I am searching for a cheap and good enclosure for my electronics project. What I need in this moment is an enclosure with 350mm length, 200mm wide and 150mm height.
I have a few options:
1. To build this enclosure using wood - I have a few OSB wood plates at home, but I have only one hand...
We are converting legacy lighted display boxes from fluorescent to LED. We have had inconsistent results depending on the power supply/dimmer and LEDs used. Our long time electrical engineer consultant sadly passed away and we are left scratching our heads. I know some LEDs require constant...
Are switched mosfet boosts, like this 5A device, designed to handle brief load peaks which are many times higher than it's rated 5A?
http://www.xlsemi.com/datasheet/XL6019%20datasheet-English.pdf
thx
So normally I can solve most electronics problems on my own, but this one has me puzzled and I created this account to see if anyone else has some thoughts.
I have a 24-26vdc power source that checks for short circuits on the load line before applying full power by using a 3vdc testing voltage...
Recently, I bought a lab power supply, wich has no short circuit protection. Is there any component or circuit wich limits the current without any voltage losses? I know, I could use a Resistor, but they cannot output for example 2.9 amps at 1 Volt.
My power supply supports 3 amps and 15 Volts...
Experts,
A friend of mine travels a LOT, and they do it with 2, sometimes 3 laptops. He has about 5-10 pounds of converters & power supplies with him in a backpack, and he has been asking me for a solution. He's trying to go all USB-C (100w per spec), as many are, and these are the rough...
Are this Chinese made SMPS power supply compatible with LA 4440 IC? I mean that can I use it for any audio amplifier or Bluetooth mp3 FM module? Please tell me! If I can use it, then please tell me how I can do it?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
