7 May 2003Power Electronics / Power Management
Access Control & Identity Management
News & Events
Products & Solutions
Maxim's MAX5922, claimed to be the industry's first fully integrated IEEE802.3af-compliant 48 V power switch for power-over-Ethernet (LAN) systems, helps simplify design while reducing external component count and board space. The MAX5922 is used in IEEE802.3af compliant network switches and routers, or midspan power-insertion units that deliver power to network ports. This device allows IP phones, wireless LAN access nodes, and IP security cameras to be remotely powered over the network without causing glitches on the system power-supply rail. Before applying power to a device (load), the MAX5922 detects the presence of a valid 25 kΩ discovery signature and one of the valid IEEE802.3af classification characteristics. An internal 0,45 Ω power MOSFET limits the inrush current during start-up. After start-up, the device provides short-circuit protection. Other features include input undervoltage lockout (UVLO), thermal shutdown, and zero-current load disconnect. Error flags asserted low to monitor faults: UVLO, power-not-good, zero-current detection, and thermal shutdown.
Setting a new benchmark for high-power DC load testing Conical Technologies
Test & Measurement Power Electronics / Power Management
The new ITECH IT8900G/L high-speed, high-power DC electronic load offers a powerful combination of speed, scalability, precision and high-power density.
Read more...Quality batteries are critical for IIoT Uniross Batteries
Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.
Read more...In-ear hearing protection for firefighters
Fire & Safety Products & Solutions
Savox has launched Savox Fire Protect, a fully integrated firefighter communication system combining active in-ear hearing protection and wireless push-to-talk in a single, purpose-designed solution.
Read more...Balancing secure access control and fire safety
Editor's Choice Access Control & Identity Management Fire & Safety
In modern building management, few topics create as much tension as the intersection between security access control and fire evacuation safety. Nichola Allen of G2 Fire sheds light on this delicate balance.
Read more...Seeing the threat is not always enough Secutel Technologies
Fire & Safety Products & Solutions
With integrated Smoke Screen technology, businesses can remotely trigger a smoke deployment on demand or configure custom business rules that automatically activate the system when specific events occur.
Read more...12 kW hybrid inverter
Power Electronics / Power Management
Sungrow recently unveiled its next-generation residential energy storage solution, expanding its power range from 5 kW to 12 kW with the introduction of the new MG12RL hybrid inverter.
Read more...40 W and 75 W railway DC/DC converter Brabek
Power Electronics / Power Management
RECOM has announced two new cost-efficient DC/DC converters for the rail market with an ultra-wide 11:1 input range to cover all nominal input voltages from 24 to 110 V DC.
Read more...Power modules for solid-state transformers RS South Africa
Power Electronics / Power Management
Microchip’s new 3,3 kV silicon carbide modules deliver the required thermal performance and efficiency for SSTs to increase power available for token generation.
Read more...Solving South African power problems with locally built intelligence
Editor's Choice Power Electronics / Power Management
Smart metering infrastructure in South Africa remains patchy. The rollout has been slow, coverage is inconsistent, and for the most part, granular per-unit measurement simply does not exist.
Read more...Duxbury Cybersecurity sharpens reseller offering Duxbury Networking
Information Security News & Events
Duxbury Networking has strengthened its Duxbury Cybersecurity business unit by adding WatchGuard and Cynet, giving South African resellers broader, more integrated coverage for the security risks customers are now asking them to address.
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