Pressemeldungen, Nachrichten und Produktinformationen von Unternehmen und Institutionen

HOT PRODUCT: LTC3109: Auto-Polarity, Millivolt Voltage Step-Up Converter & Power Manager for Thermal Energy Harvesting ApplicationsMILPITAS, CA – June 14, 2010 – Linear Technology announces the LTC3109, a highly integrated step-up DC/DC converter and power management IC designed to start up and run from millivolt input voltage sources such as thermoelectric generators (TEGs) and thermopiles. The device’s groundbreaking and proprietary auto-polarity topology allows it to generate usable power from input voltages as low as +/- 30mV, enabling temperature differences as low as +1°C to be harvested in lieu of traditional battery power. This makes it ideal for energy harvesting applications in which the input voltage polarity is unknown or is subject to reversal. Energy harvesters are well suited for applications requiring low average power, even with periodic pulses of higher load current. For example, in many wireless sensor applications the circuitry is only powered to take measurements and transmit data periodically with a low duty cycle.
The LTC3109 uses two standard compact step-up transformers to provide a complete power management solution. Its 2.2V LDO can power an external microcontroller, and its main output is pin selectable to one of four (2.35V, 3.3V, 4.1V or 5V) fixed voltages to power a sensor, data acquisition circuits and/or a wireless transmitter. A second switched output can be enabled by the host in order to power devices that do not have a micropower shutdown capability. The addition of a storage capacitor provides continuous power even when the input energy source is unavailable or intermittent. The LTC3109’s extremely low quiescent current (

Automobilindustrie Finanzen Fortbildung Kultur Medizin Reise Sport Technik & Co. Telekommunikation Vermischtes Webwelt Wirtschaft

PR-Agentur