App note from Bourns’ comparing current shunt resistors and hall effect current sensing pros and cons. Link here (PDF) Current sensing is an essential design function that is necessary in a broad range of applications. For example, current sensing is needed to detect a battery’s capacity, to measure current flow, or to calculate angles in […]
Tag Archives: Bourns
App note: A simple solution for LED overtemperature protection
Bourns’ new thermal cutoff device for LED protection can be found in this paper. Link here (PDF) Compared to traditional lighting technologies such as incandescent and fluorescent lamps, LED lighting has a much longer life span, consumes far less energy and offers shock and vibration ruggedness. LEDs also produce very little heat and do not […]
App note: Linear motion potentiometers
App note from Bourns on linear motion potentiometers and how they can be used to detect position by voltage division ratio. Link here (PDF) The elements of the LMPs are manufactured with conductive plastic (CP) for extended wear capabilities. Unlike Trimmers, which are “set and forget,” these devices are designed to monitor position and are […]
App note: How Silicon Carbide power schottky diode properties provide enhanced application capabilities
Great read from Bourns’ white paper about the new SiC Schottky diode which revolutionize power handling capability and other benefits compared to Silicon diodes. Link here (PDF) For diode applications, the ideal component would be one with no voltage drop during forward conduction and no leakage current when reverse biased. It would change instantly from […]
App note: Trimmers interfacing with surveillance system sensors
App note from Bourns about the robustness of trimmers used on surveillance system, typically sealed to protect agaisnt harsh environment. Link here (PDF) Trimmer technology is designed for use in applications where the unit must be calibrated before it is shipped to a retailer, and eventually the end user. Typically, these pre-calibrated electronics use a […]
App note: How Litz wire maximizes offline multi-output flyback transformer efficiency for battery charger applications
This app note from Bourns presents improvement in efficiency and reduce thermal rise using Litz wire for multi-output flyback transformers. Link here (PDF) Flyback transformers are a robust, highly efficient and versatile option for AC-DC and DC-DC power supplies. Their wide input voltage range makes them an optimal choice for multiple designs while their use […]
App note: Matching 1500 V battery energy storage requirements with bourns® magnetic components
An app note from Bourns on their high voltage isolation magnetics to monitor large energy storages. Link here (PDF) Energy storage systems are emerging as one of the potential solutions to increase system flexibility due to their unique capability to quickly absorb, hold and then reinject electricity. Over the last few years, DC voltages in […]
App note: Effects of setting the wiper at end set on cermet resistors
Tips from Bourns on using trimming potentiometers. Link here (PDF) Potentiometers normally have a small region at the extreme ends of the adjustment range where the output is irregular. This can be seen when there is a sudden drop to essentially zero resistance. Alternatively, the change in output will stop at some small residual value […]
App note: Proper resistance measurement test method for Bourns metal current sense
How to Measure low resistance accurately talked through in this white paper from Bourns. Link here (PDF) Resistance value measurement tests typically use standard multimeters with two measuring wires. This measurement method is suitable for resistance values higher than 10 ohms, but is more prone to inaccurate results when measuring lower resistance values. This is […]
App note: Advantages of sulfur-resistant film resistors
Special type of SMD resistors from Bourns that are resistant to most environmental pollution. Link here (PDF) In recent years, the long term reliability of film chip resistors in a high sulfur environment plays an increasingly important role in a wide range of market segments such as industrial electronics, IT systems and telecommunications. Sulfurous environments […]
App note: How to protect mobile devices from ‘USB Kill’ threats
Great read from Bourns about USB killer devices and port protection solutions. Link here (PDF) Researchers have long warned about the security risks of inserting other users’ USB drives into your PC, even those from whom you trust. If the threat of malware infections isn’t cause enough for concern, there have been stories of malicious […]
App note: Protecting USB Type-C Cable connectors featuring higher power & tighter pin spacing
Bourns’ built-in thermal cut-off devices adds extra protection from faults directly on USB Type-C cables. Link here (PDF) The now ubiquitous Universal Serial Bus (USB) standard was initially developed in 1994 with the intent of providing a communication standard to improve and simplify communication between the PC and peripheral devices. An updated version of the […]
App note: Offline non-isolated flyback converter protection
A white paper from Bourns about thermal protection PTCs on flyback converters. Link here (PDF) This paper examines the use of resettable polymer fuses for protecting offline flyback converters. Using a thermal model of the resettable fuse surrounding solder pads and copper to optimize the trip time so that the converter is protected during overloads, […]