Buck Regulator Output Voltage. Control methods or topologies used in buck regulators include voltage mode vm current mode. Output voltage vo can be shown by following method.
At this time the diode d is reverse biased and does not conduct. For example a buck regulator with an input voltage of 66 v and an output voltage of 3 3 v will require a buck switch duty cycle of approximately 5. Ref 2 1 2 o v r r r v v 1.
Buck converter operation when the switch in the buck regulator is on the voltage that appears across the inductor is vin vout.
Output voltage vo can be shown by following method. They are responsible for a money spec that s even more important than input ripple namely output voltage ripple but compared to the input capacitors and buck regulators these caps have an easy life. The solution is simple we just add a 3 3v linear regulator ic like ld1117 with the 12v rail and it regulates the voltage down to 3 3v. Exists between the error amplifier output and the switching element of output stage.
