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LTC3106 – 300mA Low Voltage Buck-Boost Converter with PowerPath and 1.6μA Quiescent Current

Features Dual Input Buck-Boost with Integrated PowerPath™ Manager Ultralow Start-Up Voltages: 850mV Start with No Backup Source, 300mV with a Backup Source Compatible with Primary or Rechargeable Backup Batteries Digitally Selectable VOUT and VSTORE Maximum Power Point Control Ultralow Quiescent Current: 1.6μA Regulated Output with VIN or VSTORE Above, Below or Equal to the Output Optional Backup Battery Tr ...

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Precision programmable current source uses two ICs

This Design Idea mates a precision current source IC with precision difference amp chips to create a programmable current source or sink. The resistor-programmable current source/sink in Figure 1 illustrates the basic topology, taking advantage of tightly matched on-chip resistor ratios instead of relying on absolute tolerances. The IIN current source gives rise to a reference voltage across Rf at the op-am ...

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UT204 is able to measure DC current and also True RMS

UT203 provides a lot of user comfort and a very pleasant feature - measuring of a DC current without interrupting a measured circuit. However UT204 is different from its “weaker” brother in one essential thing - it enable measuring of a true RMS value of alternating signals (TRMS). As we know, usual multimeters usually deploy a simple rectifier and an RC cell and they´re calibrated to show an effective valu ...

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Circuit adds foldback-current protection

  For many applications that require power-supply currents of a few amperes or less, three-terminal adjustable-output linear voltage regulators, such as National Semiconductor's LM317, offer ease of use, low cost, and full on-chip overload protection. The addition of a few components can provide a three-terminal regulator with high-speed short-circuit current limiting for improved reliability. The curr ...

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Say stop to dust and water with the Marquardt 1932 switch

Series 1930 may be probably familiar to you, for example from our article Series 1930 - Double Pole Rocker Switches with IP65. Till now, we had in stock types 1935.x with green and red backlight. We react to your requests for switch with the same excellent properties but without a backlight and for as good price as possible. Type 1932.3112 from company Marquardt features an advanced construction with an int ...

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Convert any input voltage from 2.8V to 80V into a fixed output voltage or output current

Linear Technology Corporation announced the LT8705, a very high efficiency (up to 98%) synchronous buck-boost DC/DC controller that operates from input voltages above, below or equal to the regulated output voltage. This device has four feedback loops to regulate the input current/voltage, along with the output current/voltage. The input current and voltage feedback loops can prevent overloading of solar ce ...

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Addressing the Future of Global IP Telephony – Current Analysis Launches New Intelligence Service: Carrier Internet Protocol Telephony

STERLING, VA (PRWEB) September 2, 2004 Current Analysis, the leading provider of tactical, competitive intelligence and rapid response solutions has announced the addition of a new intelligence service to its award-winning CurrentCOMPETE™ platform: Carrier Internet Protocol Telephony. The Carrier IP Telephony module will offer intelligence and analysis into the companies, products, and strategies impacting ...

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