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Questions tagged [ac-dc]

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Design and implementation of safe and efficient AC voltage to DC voltage supplies. Typically Mains to some lower DC voltage.

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i've Speaker with woofer requiring AC 12 voltage, and i have DC 12 voltage Adapter. However, speakers are working properly. but Can i use DC 12 V Adapther with the Speaker which is requiring AC 12 ...
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I am working on a project, and I need to convert 240V AC power to 5V DC to power a microprocessor. I can't use a wall wart, and I am looking for a PCB that will do the same as one - for near the same ...
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Lately, I’ve been reading about the many advantages of HVDC transmission systems for long distance transmission, undersea links, and others. The historical reason of why AC was picked over DC was ...
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There's a bunch of topics around this but I haven't found something that fits my requirements. I'd imagine this is a fairly common thing though so any pointers would be appreciated I want to design a ...
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What is the smallest cheap AC (110v) to DC convertor available for Arduino. I want this to be embeddable in a box along with Arduino without taking more space. Thanks in advance
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I have a circuit that has an input of 35V peak and I would like to drop the voltage down to 5V 200mA. I was recommend to use a pre-regulator in the following configuration: The good thing is that it ...
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I would like to pull out 5v 3A max in series from an already existing connection from the mains 240v 40A connection. Current circuit: What I would like to implement: What are the possible problems ...
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This question stems from notations on schematics and seemingly conflicting information I'm seeing. I suspect that I'm seeing different vernacular for the same concepts--but I'm in a place where no one'...
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I am designing an Atmega328 based device which needs to be powered directly from 230V AC. I have found a transformer in my local electronics store which seems perfect, but I have never worked with ...
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I wish to place some Raspberry Pi's in remote locations (data centres) for telemetry and other services like serial OOB access. Typically dual AC feeds are presented to customers in a data centre ...
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In my circuit I am taking in 60 Hz 120 VAC from the power company and hooking it up to a AC/DC non-linear switching buck converter I am designing. I know that: true power factor = (displacement power ...
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I’m reading the user guide for a Microchip reference design of a 300W AC/DC converter. Section 1.2 starts with these requirements: A conventional SMPS must implement PFC if it draws more than 75 ...
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For further detail, I plan to extract an alternating current and convert it to direct current. Suppose that the AC flowed through the wires; how can I make it a direct current using the full bridge ...
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I picked up a 9V switching DC adapter from SparkFun a while back, but I've been hesitant to use it because it doesn't have any of the usual "safety" approvals that you normally see on power adapters (...
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