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iamquantized
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I need to design a circuit to charge a capacitor with minima loss of dissipation through resistance. Any idea?
alvaros said:SMPS ( Switched Mode Power Suplies ) charges capacitors through inductors and they have an efficiency of 90-95%.
Using resistances, you lost half the power in the resistance, as stated in another thread not may days ago.
berkeman said:The simplest circuits will be using the Simple Switcher series of DC-DC converters from National Semiconductor:
http://www.national.com/appinfo/power/switcher.html
Look up the application information and reference designs (and design calculators) for the "Buck" regulators -- those are the ones that take in one voltage, and regulate it down to a lower voltage using a switching transistor, an inductor, a flywheel diode, and feedback.
Too much.they have an efficiency of 90-95%.
Any more simpler idea
alvaros said:myself: Too much.
Did you look at wiki ?
http://en.wikipedia.org/wiki/Smps
http://en.wikipedia.org/wiki/Boost_converter
http://en.wikipedia.org/wiki/Buck_converter
You require, at least, one inductor, one diode, a switch ( MosFet transistor ), and any circuit to drive the switch.
A capacitor is an electronic component that stores electrical energy in an electric field. It consists of two conductive plates separated by an insulating material called a dielectric.
A capacitor can be charged by applying a voltage across its two plates. This creates an electric field between the plates, causing one plate to accumulate positive charge and the other to accumulate negative charge.
"Minima dissipation" refers to the process of charging a capacitor with the least amount of energy loss. This is achieved by using a low-resistance circuit and minimizing the time it takes to charge the capacitor.
Charging a capacitor with minima dissipation is important because it helps to conserve energy and prevent excess heat generation. It also helps to prolong the lifespan of the capacitor and reduce the risk of damaging other components in the circuit.
To minimize dissipation when charging a capacitor, you can use a low-resistance circuit, such as a short and thick wire, and reduce the charging time by using a higher voltage source. It is also important to ensure that the capacitor is fully discharged before charging it again.