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Just to further complicate matters if application has high input voltage and low output duty cycle will be . For a load the peak inductor current will be. Keeping alt control pressed and left clicking will now plot power through yaxis against resistance of the xaxis see below Notice also labelled mW graph curve | LTspice Tutorial: Part 2 - Analog Circuit Design | LTspice ...

In the Value field enter MySwitch to relate del definition with as shown FIG Run simulation. The next line contains simulation command followed by some options final is . Its the same for xaxis as well

Sometimes it is useful to display the numeric dc value of node. However the drive to top MOSFET is powered from INTVCC . If you make mistake will undo previous action. It is best to construct the main circuit first run simulation probe desired voltages and currents see what LTspice calls each plot

Xml Copyright Simon Bramble Forums Search Recent Posts Unanswered Threads Videos Physics Math Other Science Interviews Pop Experiments Entertainment Members Notable Current Visitors Activity New Profile Insights Log Sign up Articles Homework Help Discussion Engineering and Computer You are using out date browser. General Navigation Also shown the edit menu are keys. I designed a V to buck converter where spent ages picking the top FET balance Qg and RDSON only get efficiency of . The positive terminal of this capacitor should be situated physically close drain top MOSFET and negative source bottom . Also if n inductors of the same value and wound on core are placed series combined inductance is x single . The first statement AC DC OP TRAN TF NOISE applicable analysis. If the inductor current ramps down zero converter is then discontinuous conduction mode DCM. LTspiceDC Analysis Home Help Media Links Practical Schematics Simulation Updates Article Andy Collinson Email Please Note All the information presented here my own work from Linear Technology