Category: DC-DC Converters

Flyback means ‘returning’ Flyback converter generally uses for step-down or step-up with isolation for low power applications. Most commonly uses in auxiliary power supplies. The arrangement of power electronic semiconductor components such as switch (, diode , coupled inductor , and capacitor  for flyback converter operation is shown below figure. By applying KVL and KCL…

The Boost converter operation is explained here. 3. Boost Converter Analysis The analysis of any converter involves in deriving the circuit output and input relation in terms of voltage and current equations, inductance and capacitance equations, and maximum stress across each component in circuit for its selection. The rate of change of current through inductor…

Boost means ‘Increasing’ Here we are increasing the voltage from input side to output side. Since output voltage is increasing at output, current increases relatively compared to input current. i.e. Input voltage Output voltage Input current  Output current                          Definition: The converter which increases the input DC voltage is called boost converter or step-up converter…

The buck converter circuit and operation is already discussed here. 3. Buck Converter Analysis The analysis of any converter involves in deriving the circuit output and input relation in terms of voltage and current equations, inductance and capacitance equations, and maximum stress across each component in circuit for its selection. This relations can be derived…

Buck means ‘Reducing’. Here we are reducing the voltage from input side to output side. Since voltage is reducing at output, current increases relatively compared to input current. Input voltage (Vdc) > Output voltage (Vo), and Input current (Idc) < Output current (Io)                          Definition: The converter which reduces the input DC voltage is called…

Why DC-DC Converters? DC-DC converter is used to step-up or step-down the input DC voltage as per the load requirement and also main importantly regulates the output voltage for changes in the input voltage and load. The output voltage regulation can be done by controlling the on/off time period (duty cycle,) of switches inside the converter.…