App note from Vishay which focuses on the diode’s losses present during the forward and reverse condition. Link here (PDF) In the forward condition, diodes carry the current while showing the lowest resistance at the current flow (ON state) and the lowest possible voltage anode to cathode. In the reverse condition, the voltage anode to […]
Tag Archives: Switching Power Supply
App note: How to Use an SiC Diode in a PFC Circuit
App note from Vishay on using the SiC’s diode no switching loss on PFC circuit. Link here (PDF) An SiC diode is the optimal choice for power factor correction (PFC) in continuous conduction mode (CCM) because its particular reverse recovery characteristics reduce switching losses to almost zero. The selection criteria for an SiC diode are […]
App note: Bootstrap circuit in the buck converter
App note from ROHM Semiconductor about bootstrap capacitor used in switching regulator chip. Link here (PDF) This application note explains the step-up circuit using a bootstrap capacitor. In buck converters, this circuit is used when the highside switch is the N-ch MOSFET.
Teardown of a BK precision 1696 programmable switching power supply
Kerry Wong did a teardown of a BK Precision 1696 programmable switching power supply: My original plan was to find a replacement LCD and restore the unit to its original full functionality. But the LCD used in this unit is likely specifically made for the 169X series of power supplies and through some initial research […]