The embedded systems that control vehicle tracking grow more sophisticated by the day. Hope Bovenzi, Texas Instruments Inc. THE phrase “car of the future” often invokes thoughts about autonomous driving. But it is fair to also consider what it will be like as a passenger once our driving habits change. With free hands and relaxed […]
How to design a functionally safe vehicle display
It pays to know about the ASIL B compliance measures needed for automotive subsystems. Szukang Hsien, Automotive Business Unit, Maxim Integrated TAKE the wheel of a new car today and you’ll be greeted with the bright glow of screens filled with useful data: how fast you’re going, what’s playing on the radio, a playlist of […]
Galvanic isolation for electric vehicle systems
High voltages and high currents circulating in EVs make the fundamentals of electrical isolation techniques an important topic. Ross Sabolcik, Silicon Labs AS automotive designs move toward electrification, high-wattage power electronics become critical to new electronic drivetrain and battery systems. In these applications, digital controllers safely interface with the high-voltage systems of modern electric vehicles […]
Vehicle electrical systems: Zero-to-sixty in 48 volts
Versatile automotive 48-V electrical systems will reduce CO2 emissions and make practical super-efficient electrical subsystems. Joseph Pulomena, EPCOS, a TDK Group Co. NEARLY five years ago, the U.S. government issued rules requiring automakers to hit a fleet average of 54.5 mpg for new cars and trucks – nearly doubling average fuel economy. Electric vehicles and […]
What are diodes? A quick refresher
A diode is a passive component made with semiconductor materials (a chip) that conducts current flowing in one direction but does not conduct current flowing in the opposite direction. The symbol for a diode (to the right in Figure 1) looks something like an arrow pointing in the direction of the forward current. Current flows […]
How to specify the proper Peltier module for your design
The latest generation of Peltier cooling modules can be a powerful addition to a designer’s thermal management toolbox. Robust and reliable, they can cool an IC or various other components – such as an LED or laser diode – to a target temperature and ensure stability even if the load changes rapidly. The modules are […]
Load switches, Part 2: IC implementations and benefits
Part 1 of this FAQ looked at the need for the load-switch function for a circuit’s DC rails, the basic implementation using a MOSEFT and driver, and the limitations of this approach. Part 2 looks at what are referred to as load switches, which in this context means ICs designed to implement the load-switch function, […]
Load switches, Part 1: Basic role and principle
Load switches are used to enable/disable power to selected ICs or circuit subsections. Although they don’t get much attention, they are useful for both saving power as well as management of multiple power rails. This FAQ will discuss their function, basic design, advanced IC implementations, and additional benefits of IC load switches. Q: What is […]
Here’s what happens when lithium-ion batteries are drastically overcharged
Lithium batteries have a high energy density so they can store a lot of energy in a small volume. But they can go up in smoke when bad things happen. Recently we recorded a short video to show what can happen during one of those bad things – overcharging. Excessive charging can bring on thermal […]
Voice-coil actuators, Part 2: Application issues
Part 1 looked at the basic of the VCA. Part 2 looks at operation in more detail along with applications, as well as a comparison to the solenoid. Q: What equation governs the behavior of a VCA? A: As with most magnetic-coil devices, it’s the Lorentz force equation. This shows that the force generated is […]
- 1
- 2
- 3
- …
- 9
- Next Page »
@PowerElectrTips
EE World Online