ROHM Semiconductor announced they have developed a compact, high-efficiency 20V N-channel MOSFET (RA1C030LD), optimized for switching in small, thin devices, including smartphones and wearables such as wireless earbuds and other hearable equipment. In recent years, the increasing sophistication and power requirements of compact devices have resulted in larger batteries that reduce the space available for […]
Wearables
Battery charger IC handles low-voltage charging of wearables, compact IoT devices
The BD71631QWZ battery charger IC from Rohm Semiconductor is designed to provide low-voltage charging of wearables (e.g., wireless ear buds) and thin, compact IoT devices (e.g., smart displays) powered by rechargeable batteries. In recent years, the need for safer, higher density rechargeable batteries has led to the development of new battery types. This includes all-solid […]
Power system design considerations for wireless IoT nodes and wearables – Virtual Roundtable (part 2)
The second part of EEWorld’s two-part “virtual roundtable” discussion on power system design considerations for wireless IoT nodes and wearables focuses on the use of switching regulators and the associated technical challenges. Our panelists are: Florian Feckl (FF), Systems Engineer and Product Definer for Low Power Buck Converter, Texas Instruments, and Kyle Van Renterghem, (KVR) […]
Power system design considerations for wireless IoT nodes and wearables – Virtual Roundtable (part 1)
The first part of EEWorld’s two-part “virtual roundtable” discussion on power system design considerations for wireless IoT nodes and wearables focuses on the use of low dropout regulators (LDOs). Our panelists are Kyle Van Renterghem, (KVR) Marketing & Applications Manager, Low Input Voltage LDOs, Texas Instruments, and Julian Hagedorn (JH), Systems Engineer, Texas Instruments. JS: […]
Testing power consumption and batteries for wireless IoT nodes and wearables – Virtual Roundtable (part 2)
In this second part of EEWorld’s virtual round table on testing power consumption and batteries for wireless IoT nodes and wearables, our panelists delve into the nuances of complementary cumulative distribution function (CCDF) testing and predicting actual battery performance. Our panelists include: Janet Ooi (JO), IoT Industry Solutions Lead at Keysight Technologies, Shah Hassan (SH), […]
Testing power consumption and batteries for wireless IoT nodes and wearables – Virtual Roundtable (part 1)
The first part of EEWorld’s virtual roundtable discussion considers the challenges of testing power consumption and batteries for wireless IoT nodes and wearables. Joining us for this virtual roundtable are: Janet Ooi (JO), IoT Industry Solutions Lead at Keysight Technologies, Shah Hassan (SH), Business Manager at Tektronix, and Dr. Markus Herdin (MH), Market Segment Manager […]
Batteries and charging for wireless IoT sensor nodes and wearables
Battery selection for a given wireless Internet of Things (IoT) node or wearables design is complex. Among the important factors are: how long the device is expected to operate with a single battery; the choice between various primary and secondary battery chemistries; the nominal and cut-off voltage of the electronics; the energy/current consumption profile, the […]
Power conversion considerations for wireless IoT nodes and wearables, Part 1
Power system considerations are an important aspect of all system designs. In the case of wireless Internet of Things (IoT) nodes and wearables, power system design is complex, with the need to balance numerous performance tradeoffs. It is critical to arrive at a successful design that maximizes both battery life and overall functionality. Fortunately, there […]
Single-input/multiple-output PMIC boosts battery life in hearables, wearables
Designers of compact consumer devices can now slash solution size by half and extend battery life by 20 percent with the MAX77654 single inductor, multiple-output (SIMO) power management IC (PMIC) from Maxim Integrated Products, Inc. (NASDAQ: MXIM). This next-generation SIMO PMIC delivers 3 outputs with just one inductor at 91 percent efficiency, which is 16 percent […]
Range of rechargeable Li-ion batteries powers up wearables and hearables
The task of opening or starting a modern car is now the task of miniature computers, which are designed by car manufacturers to perform an increasing number of functions. These smart keys can do quite a lot more. For example, they provide information about the oil level, the distance that can still be traveled, the […]
