Electrical/Electronics

Glass as Electrode Makes Batteries More Efficient

Today’s batteries provide a reliable power supply for our smartphones, electric cars and laptops, but are unable to keep up with the growing demands placed on them. Researchers have discovered a material that may have the potential to double battery capacity: vanadate-borate glass. The glass is being used as a cathode material, which is made of vanadium oxide (V2O5) and lithium-borate (LiBO2) precursors, and was coated with reduced graphite oxide (RGO) to enhance the electrode properties of the material. The vanadate-borate glass powder was used for battery cathodes, which were placed in prototypes for coin cell batteries to undergo numerous charge/discharge cycles. In tests, the glass electrodes demonstrated a vast improvement in these batteries’ capacity and energy density. Source:

Posted in: News, Batteries, Electronic Components, Energy Efficiency

Read More >>

Automotive Circuit Protection Using High-Reliability TVS Diodes

Diode technology eliminates transient surges and enhances vehicle safety. Littelfuse, Chicago, Illinois Designing automotive electronics presents numerous technical challenges, including the need to protect against electrical hazards. The three major sources of electrical hazards in automotive systems are electrostatic discharge (ESD), switching loads in power electronics circuits, and lightning. Overcoming these transient surges that can harm the vehicle’s electronics, whether under the hood or in the cabin, is one of the biggest obstacles of system design.

Posted in: Briefs, Power Management

Read More >>

A Resistive, High-Voltage, Differential Input Interface in a 3.3-V BiCMOS 0.5-μm Process for Extreme Environments

NASA’s Jet Propulsion Laboratory, Pasadena, California Wide-temperature and extreme-environment electronics are crucial to future missions. These missions will not have the weight and power budget for heavy harnesses and large, inefficient warm boxes. In addition, extreme-environment electronics, by their inherent nature, allow operation next to sensors in the ambient environment, reducing noise and improving precision over the warm-box-based systems employed today.

Posted in: Briefs, TSP, Power Management, Sensors

Read More >>

Precision Current Input With Well-Defined Current Limiting for Extreme Environment Applications

NASA’s Jet Propulsion Laboratory, Pasadena, California Wide temperature and extreme environment electronics are crucial to future missions. These missions will not have the weight and power budget for heavy harnesses and large, inefficient warm boxes. In addition, extreme environment electronics, by their inherent nature, allow operation next to sensors in the ambient environment, reducing noise and improving precision over the warm-box-based systems employed today.

Posted in: Briefs, TSP, Power Management, Sensors

Read More >>

Power Management System Keeps SpaceCube Flying

UltraCMOS®-based power management card Peregrine Semiconductor Corp. San Diego, CA 858-731-9400 www.psemi.com Selected for NASA Goddard Space Flight Center’s SpaceCube 2.0 Hybrid Science Data Processor, Peregrine’s UltraCMOS®-based power management solution is delivering uninterrupted high performance while meeting the radiation-hardened and extreme-temperature requirements on the International Space Station. The regulators feature integrated switches that help the design team meet its goals of delivering order-of-magnitude improvements in on-orbit computing performance over traditional flight computing systems.

Posted in: Application Briefs, Power Management

Read More >>

Digital Controller

ZMDI, Dresden, Germany, released the ZSPM2000 configurable digital PWM controller with integrated MOSFET driver for smart digital point-of-load (POL) solutions. The controller operates as a synchronous step-down converter in a single-rail, single-phase configuration. It features an integrated power-stage driver, and digital communication and control via the PMBus™ interface. Other features include digital-control algorithms, anti-cross-conduction, and power-saving features.

Posted in: Products

Read More >>

Serial Communication Cards

ACCES I/O Products, San Diego, CA, announced mPCIe-ICM Series PCI Express Mini Card isolated serial communication cards that measure 30 × 51 mm and feature a selection of four or two ports of isolated RS-232 serial communications. Features include 1.5kV isolation provided port-to-computer and 500V isolation port-to-port on all signals at the I/O connectors. The cards provide ±15kV ESD protection on all signal pins, and use 128-byte transmit/receive FIFO buffers to decrease CPU loading and protect against lost data in multitasking systems.

Posted in: Products, Electronic Components

Read More >>