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), […]
FAQ
Motor fundamentals and DC motors
Motors use the principles of electromagnetism to convert electrical energy into mechanical energy. There are a wide variety of electrical configurations and mechanical constructions used to produce electric motors. A fundamental difference between various types of motors is whether the input voltage is AC or DC. However, that differentiation immediately becomes a little fuzzy since […]
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 […]
Smart grids, software defined grids, and big data
The business models and technology architectures of electric utility grids worldwide are under attack both at the edge and overall. The first FAQ in this series looked at the attack on the edge of the grid in “Nano grids, microgrids and the decentralization of the electric grid.” Virtual power plants, distributed energy resources, and power […]
Virtual power plants, distributed energy resources and power in the cloud
Virtual power plants (VPPs) are increasingly challenging the dominance of traditional large-scale centralized electricity generation. A VPP is defined as a collection of distributed energy resources (DERs) that are aggregated through cloud computing and control for the purpose of providing enhanced power generation and availability. The DERs are often heterogeneous and can include wind power, […]
Nano grids, microgrids, and zero net energy consumption
Electric utility grids around the world are undergoing a fundamental change in architecture. The centralized grid that was designed to provide inexpensive electricity with a reasonable level of quality and reliability is no longer meeting society’s needs. Aging transmission and distribution systems are significantly reducing both the quality and reliability of electricity. And the use […]
Benefits of software-configurable power systems
The first FAQ in this series looked at the various hardware options for implementing digital power. Part two took a deep look at the PMBus/SMBus communication protocol for implementing digital power configuration, control, and monitoring. This FAQ will delve into the system-level benefits of using digital power converters with PMBus communication. PMBus can benefit the […]
Digital power management and PMBus moving into the future
Digital power ICs communicate with each other via the System Management Bus (SMBus) using the Power Management Bus (PMBus) communication protocol and the AVSBus protocol, a subset of the PMBus protocol for implementing adaptive voltage scaling. Using SMBus and PMBus-enabled devices for power conversion provides flexibility and control that is impossible with traditional analog power […]
Digital power conversion – how does that work?
Digital power is not a monolithic technology, but a common element in almost all digital power converters is a communication bus, usually based on the PMBus protocol. This FAQ delves into the numerous hardware embodiments and variations of digital power. Part 2 will dig into the operation of the PMBus protocol and the associated SMBus […]
How to design modular dc-dc systems, Part 4: Safety protection systems
The previous tutorials in this series detailed the practical design considerations of utilizing power modules for designing power delivery networks (PDNs). Once a designer has chosen appropriate DC-DC modules, designed filters for the input and output of the modules, and provided for the overall stability of the system, the next area of concern is safety. […]