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Questions tagged [constant-power]

A circuit designed to supply or consume a constant level of power. Contrast with constant-current and constant-voltage.

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Voltage drop on string of constant-power loads: Simulation issue?

I've noticed something that seems odd to me in an LTspice simulation (see below). I'm trying to model a system with a number of identical devices which each draw ~11W (with negligible variation over ...
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Converting appliance LEDs from constant current to constant voltage to allow for dimming

I'm trying to implement dimming control for the lights in my kitchen hob extractor. The lights are 4x LED spotlights which are each 3v 700mA (2.1W). They are currently wired in series to a 700mA 10W ...
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Effects of current/voltage limiting of LEDs

First of all, I have read many articles about the non-linear effects of voltage vs current of LEDs. I also know that current will rise as temperature rises, batteries have resistance, LEDs brightness ...
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Power Supply for ESP12F WiFi Module

I am using ESP12F to drive LED array circuit for dimming and other functions. Supply from LED driver is constant current for LED array. What does ESP12F requires? Constant current or Constant voltage? ...
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Does a power amplifier output constant current or constant voltage?

I am having a confusion with the following a 16W high power amplifier for an RF circuit. Specifically I wonder, does it give me a constant current or a constant voltage as output? and if it does ...
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Constant power supply with high-voltage “restrike”

I'm still playing with electrolytic chemical reactors. After looking at the results from a constant-current circuit I'm realizing that what I really need is a constant power supply because, depending ...
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Is there a constant power supply?

A voltage source is a device that produces constant voltage, but allows amperage and power to vary, in accordance with the laws of electricity. A current source is a device that produces constant ...