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 from Coilcraft on how to calculate the power dissipation of an inductor. Link here (PDF) Inductors are not typically rated by power, however an approximation of the power-handling capability of an air core or ceramic core chip inductor can be estimated using the data sheet specifications for current and resistance.
Accomodating multiple loads from a single oscillator output discussed in this app note from SiTime. Link here (PDF) Optimizing board space and managing power consumption of wearable devices is critical in sustaining competitiveness within this fast growing consumer segment. With less power consumed, battery life is extended or provides the option to reduce the battery […]
Kionix low-g acceloreometers used as tilt-sensor. Link here (PDF) Accelerometers have countless potential tilt-sense applications in today’s motion-enabled world. Tilt-sensing opportunities exist in a variety of industries, such as automotive, consumer electronics and military/aerospace, and include: • Vehicle stability systems • Inclinometers • Cell phone/PDA screen navigation • Motion-enabled game play • Tilt-enabled computer mouse/pointer […]
RLC snubber circuits, app note from Nexperia. Link here (PDF) This document describes the design of a simple “RC snubber circuit”. The snubber is used to suppress high-frequency oscillations associated with reverse recovery effects in power semiconductor applications
White paper from Nexperia about their bus hold tech. Link here (PDF) In the normal operations of a digital system, the input to any digital device within is clearly defined – it is either one or zero. There are however interface cases where outputs may be disabled that can result in floating inputs.
App note from ON Semiconductors regarding different bridge rectifier topologies and how to reduce power losses in these stages. Link here (PDF) Power over Ethernet (PoE) is a technology which allows power sourcing equipment (PSE) to safely transfer power to a powered device (PD) through an Ethernet cable. The majority of the power transferred to […]
Easily develop a motor conptrol application using this kit from ON Semiconductors without special knowledge of motor driver specs. Link here (PDF) This kit provides an API function library for motor driver control designed to control the ON Semiconductor motor driver product (LV8702V) via the Arduino Micro microcomputer. It also provides a dedicated GUI for […]
App note from Abracon about problems due on large crystal capacitive loading on smaller sized MCUs. Link here (PDF) The 18pF plated Quartz Crystals may no longer be the ideal choice for a typical clocking circuit using an off-the- shelf MCU. As silicon geometries have shrunk over the last decade, the Pierce oscillator loop embedded […]
Abracon lists the requirement which antenna type best fit to your application. Link here (PDF) The modern urban environment poses a challenge to high-speed designs involving Cellular, GNSS, WiFi/Bluetooth/BLE/ZigBee and LPWA protocols: the reflection, refraction, scattering, diffraction, polarization and absorption of signals necessitates highly efficient RF chains. Of all components in the chain, the antenna […]
Another tech note from Richtek on power supply regulation with cable compensation. Link here Cable compensation has been used to compensate the voltage drop due to cable impedance for providing a regulated charging voltage in battery charger applications. This application note uses a novel cable compensation method, which called cable minus compensation, as an example […]
Tech note from Richtek on buck converter profiling. Link here The synchronous buck circuit is wildly used to provide non-isolated power for low voltage and high current supply to system chip. To realize the power loss of synchronous buck converter and to improve efficiency is important for power designer. The application note introduces the analysis […]
Ground in PCB design, another app note about grounds from Renesas. Link here (PDF) Ground is supposed to be ideal. It should be a black hole for stray currents where the voltage is always zero. Unfortunately, those stray currents travel through some non-superconducting material, so small voltages arise. You may not notice small changes in […]
Renesas detailed app note about grounds. Link here (PDF) Ground is taken for granted. We stand on it, we dig into it, we make mud pies out of it. The ground isn’t supposed to move. We don’t have to think about it; it just is. When it comes to grounding a circuit, we assume that […]
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 from Vishay on the impact of torque on thermal resistance of TO-220 devices. Link here (PDF) When the TO-220 was first introduced, most applications required something less than the full power handling capabilities of this package. Hence, the TO-220 is almost taken for granted in terms of its excellent power handling capacity and […]
Application examples of Negative Temperature Coefficient (NTC) Themistors, app note from TDK. Link here (PDF)
Vicor’s app note about the basics of Y-Capacitors and their uses. Link here When electronic equipment is connected to the AC mains, it has the potential to generate common-mode electrical noise. If this is allowed to flow back on to the mains supply line, it can disturb other equipment also connected to the same line.
Peripheral USB on STM32 MCUs app note from STMicroelectronics. Link here (PDF) STM32 microcontrollers include a group of products embedding a USB (Universal Serial Bus) peripheral. Full-speed and high-speed operations are provided through embedded and/or external PHYs (physical layers of the open system interconnection model). This application note gives an overview of the USB peripherals […]
Guideline from STMicroelectronics on the basics of the two new USB Type-C™ and USB Power-Delivery standards. Link here (PDF) This new reversible USB Type-C™ connector makes plug insertion more user friendly. The technology offers a single platform connector carrying all the necessary data. Using the power delivery protocol, it allows negotiation of up to 100 […]