App note: 48V buck converter helps MHEVs meet fuel emission standards

Maxim Integrated got you covered on designing all in 48V automotive compliant buck converter. Link here Ever-tightening automotive fuel emission standards are becoming challenging. The gasoline engine needs the help of an electric motor to meet these standards, leading to the introduction of mild hybrid electric vehicles (MHEV) with higher battery voltages. 48V hybrids are […]

App note: Design of a 100W active clamp forward DC-DC converter for telecom systems using the NCP1562

Another DC-DC converter design using ON Semiconductor’s NCP1562 PWM Controller. Link here (PDF) The NCP1562 PWM controller contains all the features and flexibility needed to implement an active clamp forward dc−dc converter. This IC operates from an input supply up to 150 V, thus covering the input voltages usually found in telecom, datacom and 42 […]

App note: DC-to-DC design guide

DC-DC converter design guide from Vishay. Link here (PDF) Manufacturers of electronic systems that require power conversion are faced with the need for higher-density dc-to-dc converters that perform more efficiently, within a smaller footprint, and at lower cost despite increasing output loads. To meet these demands, Siliconix has combined advanced TrenchFET and PWM-optimized process technologies, […]

App note: How to prevent thermal issues with high output current DC to DC converters in portable applications

Tips and tricks from ON Semiconductors on how to optimize high output current switching regulators thermal dissipation. Link here (PDF) As power demand in portable designs is more and more important, designers must optimize full system efficiency in order to save battery life and reduce power dissipation. Energy losses study allows knowing thermal stakes. Due […]

App note: How to use power inductors

A great guide from TDK about power inductors used in DC-DC converters. Link here As electronic devices become more advanced, the power supply voltage of LSIs used in them is lowered, so their power consumption can be reduced and their speed increased. However, a decrease in the power supply voltage also causes the requirements regarding […]

App note: DC/DC converter testing with fast load transient

Another app note from Richtek, this time about transient load testing on power converters and how you can make a simple and low cost fast transient tool. Link here (PDF) Load transient testing is a quick way to check power converter behavior on several aspects: It will show the converter regulation speed and can highlight […]

App note: The behavior of electro-magnetic radiation of power inductors in power management

Application note form Würth Elektronik about EM radiation radiated from inductors in DC-DC converters. Link here (PDF) This Application Note focuses on the Electro-Magnetic (EM) radiation behavior of power inductor(s) in DC-DC converters, which is dependent on several parameters such as ripple current, switching frequency, rise & fall time of a switching device, the core […]

Output voltage control of DC/DC converters

Thomas Fischl writes: Some applications needs to control the output voltage of a dc/dc converter instead using a fixed output voltage. For example battery chargers has to adjust the output voltage to the current battery level. This page shows how to add such a control function to a buck converter circuit. Control output via external […]

LM2596 DC-DC converter module testing

Kerry D. Wong writes: In the video below, I tested this DC-DC converter board under various operating conditions and measured its efficiencies. To conclude, these switching regulator boards are well suited for low to medium current draw digital circuitry but for higher current applications a heat sink is needed and even so I would not […]

9V to 48V DC-DC converter

Konstantin Dimitrov over at Electronics Lab writes: This project is a 8-12Vdc to +48Vdc DC-DC converter based on MC34063 switching regulator. It’s a simple project of a DC-DC converter to make a phantom power supply for professional microphones. It can deliver 15-20mA at 48VDC. It ‘s based on MC34063 DC-DC step-up, step-down and boost converter. […]