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1 vote

How to determine voltage level of the ultrasonic transducer?

In your output power to drive voltage equation, you are not allowing for the conversion efficiency of the transducer. A quick review of the literature suggests conversion efficiencies of 20-40%, with ...
colintd's user avatar
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1 vote

Non-contact powering of LED indicator from a high voltage cable

You don't provide details of voltage or frequency, but given that you say "high-voltage" let's assume we're talking in the 11 kV range at 50 Hz or 60 Hz. You also don't say if the plugs are ...
colintd's user avatar
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0 votes

Can I load a transmission line to more than 10x surge impedance loading?

Thanks for the interesting question. While I am no expert on the matter, I may have anecdotal notes and superficial observations to share. Judging by the question, you are an apprentice of the trade, ...
frr's user avatar
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1 vote

Can a strong electrical field at power frequency (50 or 60 Hz) be dangerous to humans?

If you regard the human body as a big bag of aqueous salts, then you can see that it's orders of magnitude lower impedance than the free space around it. This means you can regard external AC fields ...
Neil_UK's user avatar
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1 vote

Checking PCB Layout, Routing Tips and Improvements?

Your board is essentially working at DC. Therefore: You can run signals on bottom layer. As long as the plane is not too broken by routing other signals, it should work fine. Vias do have inductance....
Justme's user avatar
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5 votes
Accepted

Why does my flyback transformer simply refuse to work?

You may want to take a look at this circuit. That's a company that makes and sells power supply kits for Kirlian photography. That circuit uses an LM555 as an oscillator. It then drives the ...
JRE's user avatar
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1 vote
Accepted

Do Kirlian setups work with DC power?

According to this paper, Kirlian photography will work with DC. There's mention of some differences between Kirlian pictures made using AC and Kirlian pictures made using DC. The polarity of the ...
JRE's user avatar
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0 votes

Is it possible to add headphones to a Geiger counter circuit?

Sure. The piezo clicker will have a voltage across it (creating the click) which you could process into a digital signal to feed to a micro controller. Your micro controller can then receive the click,...
LordTeddy's user avatar
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1 vote

Can I use battery in a high voltage (600V) float circuit?

You’re right to worry but this situation can be managed. You should protect/insulate all of the high-voltage (relative to ground) equipment, including the entire battery; don’t assume that the ...
Frog's user avatar
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4 votes

What connector pin header can I use for high voltage?

A quick digikey parametric search (1) "Connector" -> "Circular Connectors" -> "Circular Connector Assemblys" -> (2) Max. Current >= 30A -> Max. Voltage >...
ElectronicsStudent's user avatar
1 vote

Airport runway lighting: What is constant current in relation to alternating and direct current?

Most of the time we deal with constant voltage supplies, for example you might have a 12 V supply, and the current in the circuit will depend on the resistance as described by Ohm’s Law I = V/R. So ...
GodJihyo's user avatar
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