If you are searching for "problemas de 6to de electronica de potencia andres barrado pdf," you will likely encounter the following classic problem types.
Statement:
Design a Boost converter with Vin=24V, Vout=48V, Pout=100W, fs=100kHz.
Step-by-step (typical exam problem):
Statement:
Simulate a 100W synchronous Buck converter (Vin=48V, Vout=12V).
Expected conclusion (from Barrado’s teaching materials):
Efficiency peaks between 100-200kHz for MOSFETs with moderate Qg. Above that, switching losses dominate; below that, inductor size and conduction losses rise. If you are searching for "problemas de 6to
Why has this PDF become a legend? Because Andrés Barrado solved the "pedagogy gap." Textbooks like Rashid or Mohan provide excellent theory but few step-by-step solved exercises. Barrado’s work fills that gap.
He teaches students to:
If you master the "Problemas de 6to," you will not only pass your final exam; you will be able to design a 500W power supply for a computer or a charger for an electric vehicle.
Typical Problem: "A single-phase full-wave controlled rectifier feeds an R-L load. The source is 220Vrms at 50Hz. The firing angle (α) is 60°. Determine: a) Average output voltage, b) RMS current, c) Power factor, d) Distortion factor." b) RMS current
Barrado’s Twist: Instead of a pure R-L load, the problem adds a back EMF (counter-electromotive force) simulating a DC motor. You must calculate if the rectifier is in continuous or discontinuous conduction.
In steady state: $$ \int_0^T V_L dt = 0 $$ $$ \int_0^T I_C dt = 0 $$ These two equations are the "secret sauce" to solving 90% of the problems. c) Power factor