Circuit & System Protection


Latest Articles

Protecting loudspeaker crossover networks
11 June 2008
Loudspeakers and amplifiers are manufactured by numerous companies building one or both of the systems. Different design parameters cause impedance mismatching which can be damaging to speakers. Over-current ...

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Addressing enclosure cooling on three levels using water
11 June 2008, Actum Electronics
In modern electronics systems, where the ambient temperature lies above 55°C or a high performance per area or volume is demanded, water cooling is often the only solution. Water has a specific heat capacity ...

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USB port protection considerations
11 June 2008
In today’s ever-expanding world of information technology, the priority becomes to create devices carrying more information in a smaller package. Not only are computers becoming more compact, they are ...

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Noise filter product offering expanded
11 June 2008, Sivan Electronic Supplies
Cosel has added four new models to its range of noise filter products. The NBH series is designed for ultra-high attenuation of common-mode noise from 10 kHz to 10 MHz. The two-stage filter is designed ...

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New ESD protection components
28 May 2008
Bourns has released two new products in its ChipGuard ESD protection range. The new CG0402MLU/CG0603MLU was designed with an ultra low capacitance, and the CG0805MLA-5,5ME and CG0805MLA-18KE devices provide ...

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Protecting USB OTG ports
14 May 2008
After the success of the USB 2.0 standard, the USB Implementers Forum developed a complementary standard called USB OTG (on the go). USB OTG was developed to allow peripheral devices to communicate ...

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Host-side cryptographic security solution
14 May 2008, Altron Arrow
Atmel's new CryptoCompanion chip offers plug-and-play, host-side cryptographic security for embedded systems that are prone to firmware theft, the violation of licensing agreements and/or product counterfeiting. ...

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Extended range of EMC output filters for motors
30 April 2008, Electrocomp
Epcos' SineFormer series of EMC output filters has been extended by a range designed for applications up to a rated voltage of 760 V. The new B84143V*R290 spectrum of filters is available in current stages ...

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Range of cooling fans
30 April 2008
Bi-Sonic manufactures a wide range of high quality cooling fans aimed at solving heating problems in computers, machines, power supplies, ventilation and many other technical applications. The company's ...

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Mechanical design tips for EMI shielding
2 April 2008, Electronic Industry Supplies
Nowadays every company is affected by CE/EMI demands. The use of electronics increases, as well as the operating frequencies. Therefore, radiation and immunity has to be taken into account in an early ...

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Highly precise digital temperature sensor
19 March 2008, Altron Arrow
STMicroelectronics recently introduced the new STTS75, a high-precision digital CMOS temperature sensor IC with a sigma-delta temperature-to-digital converter and an I²C-compatible serial digital interface. ...

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USB connector provides EMI and ESD protection
5 March 2008, Electronic Industry Supplies
Spectrum Control has developed a series of USB connectors that incorporate EMI or ESD filters into an industry standard USB package. These connectors satisfy the requirements of the USB 2.0 specification ...

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Temperature-compensated resistor for APD biasing
5 March 2008, CST Electronics
Maxim's new DS1841 is a temperature-compensated resistor optimised for avalanche photodiode (APD) voltage control. This I²C-controlled, 128-position digital resistor utilises a logarithmic scale specifically ...

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Over-current thermistors now lead-free
5 March 2008, Electrocomp
Epcos now offers leaded over-current PTC thermistors (B598*C0120A570) for power-line applications in lead-free versions. The high-temperature solder in these environmentally friendly protective components ...

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IEC-connector filters with low mounting depth
5 March 2008
The new range of SRB filters from Tyco Electronics ranks as one of the IEC-connector filters with the lowest installation depths on the market. The filters are fully shielded and available with various ...

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Voltage sequencers with non-volatile fault registers
5 March 2008, CST Electronics
Maxim has introduced the MAX16046-MAX16049, 12-/8-channel, EEPROM-configurable voltage sequencers/monitors/marginers. These devices use unique non-volatile fault registers to store system voltage and ...

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Dual, matched PTC thermistors
5 March 2008, Altron Arrow, Electrocomp
Bourns has extended its CMF-SD product family of ceramic PTC thermistors to include a surface mount package that houses two resistance matched PTCs in a single ceramic housing. The product is a suitable ...

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IC combines ESD
5 March 2008
STMicroelectronics has developed new devices that combine EMI filtering and ESD protection in a single ultra-compact package, enabling system designers to implement both functions within a footprint of ...

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Intelligent power management system
5 March 2008, Retron
Mico, the intelligent power distribution system from Murrelektronik, monitors current, indicates current rating and detects overloading. This product range has been supplemented with a 2-channel version, ...

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Precision digital temperature sensors
20 February 2008
STMicroelectronics has announced a new series of precision digital-output temperature sensors, operating over the -55 to +125°C temperature range, which are well suited to low power applications. The ...

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