Inductors are simple components in electronic devices that perform tasks like cleaning up electrical signals, helping with timing, and managing power. They store energy in magnetic fields when electricity flows through them and releases them back into the circuit. Inductors resist sudden changes in the flow of electricity, pushing back “spikes” by creating an electrical…
Component selection for low power embedded systems
Selecting components is one of the most essential and critical processes when designing any electronic system. Poor component selection can lead to many problems within the design, PCB layout, power budget, etc. In this article, we will discuss how to select a component for a low-power-optimized design. Resistor The power dissipated by a resistor is…
How to use a buck-boost converter to regulate a Li-ion battery
Nearly every electronic device today relies on a battery as a power source. The dc-dc converter plays a significant role in maintaining the working time of the battery. A buck-boost dc-dc converter is an ideal choice for the most efficient and reliable battery range. The buck-boost converter provides the regulated voltage in the Lithium (Li-ion)…
How to design a DC-to-DC buck converter
Most appliances require 5Vs for operation. In this experiment, we’ll design a DC-to-DC buck converter that provides 5Vs of the regulated output. We’ll use an Adjustable AP65111AWU-7 switch-mode IC for the DC voltage conversion and analyze its performance. Specification of the IC: A step-down 12V DC to 0.8V to 6V DC An output current of…
Vishay’s new resonant transformer with integrated inductor simplifies PCB layouts
Vishay Intertechnology has introduced a new resonant transformer for inductor-inductor-capacitor (LLC) applications that feature the transformer and an integrated inductor in a single package. Designed to save PCB space while simplifying layouts and reducing component mounting requirements, the 5.5 kW Vishay Custom Magnetics MRTI5R5EZ offers fully tunable magnetizing and leakage inductance with minimal parasitic variation. The…
Vishay launches first AEC-Q200-qualified IHSR high-temperature inductor
Vishay Intertechnology has introduced the first AEC-Q200-qualified IHSR high-temperature inductor with current ratings to 155 A. This is for the 19.0 x 17.1 x 7.0 mm 6767 case size. Designed for multi-phase, high-current power supplies and input and output filters in automotive under the hood and ADAS applications, the Vishay Dale IHSR-6767GZ-5A offers a 50%…
TI’s new buck/boost converter integrates supercapacitor charging capability
Texas Instruments (TI) introduced a new bidirectional buck/boost converter with an ultra-low quiescent current (IQ) of 60 nA, which is one-third the IQ of competing boost converters. The TPS61094 buck/boost converter integrates a buck mode for supercapacitor charging while providing ultra-low IQ, enabling engineers to extend battery life by as much as 20 percent when compared…
Vishay launches new automotive-grade IHTH through-hole inductors
Vishay Intertechnology recently introduced two new automotive-grade IHTH high-current and high-temperature through-hole inductor in the compact 1500 case size. For automotive applications, the Vishay Dale IHTH-1500MZ-5A (0.47 µH to 4.7 µH) delivers a high-saturation current of 156 A and a low, typical DCR (down to 0.19 mW). The IHTH-1500TZ-5A (6.8 µH to 100 µH) offers…
Vishay releases new IHVR vertical-mount, inductor for high-efficiency converters
Vishay Intertechnology has introduced a new IHVR vertical-mount inductor in the 10.25 mm by 6.4 x 10mm, 4025 case size. Optimizing inductance and minimizing DCR for increased efficiency in DC/DC converters, the newly designed Vishay Dale IHVR-4025JZ-3Z offers high temperature operation (up to +155° C) for computer, server, telecom, and industrial applications. Compared to traditional…
Analog Devices offers tiny power-management IC for wearables
The new MAX77659 single-inductor multiple output (SIMO) power-management IC (PMIC) with integrated switch-mode buck-boost charger from Analog Devices. charges wearables, hearables, and Internet of Things (IoT) devices faster and in less space than any other PMIC available today. The MAX77659 SIMO PMIC delivers over four hours of play time after a short, 10-minute charge, and…
Vishay launches new commercial inductor with high-temperature operation
Vishay Intertechnology, Inc. is launching a new commercial IHLP low-profile, high-current inductor that is the industry’s first composite inductor in the 19 x 19 x 7 mm, 7575 case size. Offering a high-temperature operation (to +155° C) for computer, telecom, and industrial applications, the Vishay Dale IHLP‑7575GZ-51 offers up to 30 percent lower DCR and…