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Low-cost audio filter suppresses noise and hum
Low-cost audio filter suppresses noise and hum
02.05.2017 · Circuits
The low-cost composite passive filter in this Design Idea requires no dc power and can enhance the performance of audio equipment and instrumentation by rejecting power-supply hum and spurious pickup from AM, FM, and low-band VHF transmissions. The composite filter comprises a cascade of three simple filters...
Ultra Low Power MCU Enables 10 Times System-Level Power Savings and Floating-Point Operation in IoT Applications
Ultra Low Power MCU Enables 10 Times System-Level Power Savings and Floating-Point Operation in IoT Applications
02.05.2017 · News · Microcontrollers
Analog Devices announced an ultra low power microcontroller unit that addresses the rapidly growing need for embedding advanced algorithms while consuming the lowest system power at Internet of Things edge nodes. The ADuCM4050 MCU includes an ARM® Cortex®-M4 core with floating-point unit, expanded SRAM...
Teardown: Drone streams live video
Teardown: Drone streams live video
28.04.2017 · Articles
Back in May 2016, EDN published my teardown of Cheerson's $10 CX-10 quadrotor drone. More recently, you saw my dissection and analysis of its $15 CX-10C sibling, with an integrated still and video camera that captured images to a memory card inserted in the drone's microSD slot. And now it's time for the ~$20 CX-10W...
Analog Devices MEMS Accelerometers Deliver Compelling Noise Performance for Condition Monitoring Applications
Analog Devices MEMS Accelerometers Deliver Compelling Noise Performance for Condition Monitoring Applications
28.04.2017 · News
Analog Devices announced two new high frequency, low noise MEMS accelerometers designed explicitly for industrial condition monitoring applications. The ADXL1001 and ADXL1002 MEMS accelerometers deliver the high resolution vibration measurements necessary for early detection of bearing faults and other common causes of machine failure...
Square-root function improves thermostat
Square-root function improves thermostat
27.04.2017 · Circuits
Perhaps the most elementary rule of control-loop design theory is that feedback-loop performance is fundamentally linked to the careful choice – and stability – of loop gain. Insufficient loop gain leads to poor setpoint accuracy. Too much gain can induce feedback instabilities, such as overshoot, ringing, and, ultimately, oscillation...
Toshiba Launches Multi-bit TVS Diodes for Protection of High-speed Interfaces in Mobile Devices
Toshiba Launches Multi-bit TVS Diodes for Protection of High-speed Interfaces in Mobile Devices
27.04.2017 · News
Toshiba Corporation’s Storage & Electronic Devices Solutions Company announced the launch of a new line-up of multi-bit, low-capacitance TVS diodes for protecting high-speed interfaces from electronic discharge and surge voltage. The new line-up covers four products that support interfaces, including USB Type-C and HDMI...
Dual-output nonisolated SMPS powers appliances
Dual-output nonisolated SMPS powers appliances
26.04.2017 · Circuits
Modern appliances offer a range of features that rely heavily on microcontrollers and auxiliary circuits. Although conventional iron-core transformers can provide ac line-isolated, low-voltage power for a microprocessor, coupling the processor’s control signals to line-side power switches requires yet another layer of electrical isolation, such as optocouplers or pulse transformers...
Project Diana bounces radio waves off moon, January 10, 1946
Project Diana bounces radio waves off moon, January 10, 1946
26.04.2017 · Articles
The US Army Signal Corps made the first attempt to "touch" another celestial body when on January 10, 1946, it bounced radio signals off the moon and received the reflected signals. Dubbed "Project Diana" for the Roman moon goddess, the effort led to what is today known as EME (Earth-Moon-Earth) communications, used for ham radio...
Dialog Semiconductor Unveils First 10A Inductorless Power Converter with over 98% Power Efficiency
Dialog Semiconductor Unveils First 10A Inductorless Power Converter with over 98% Power Efficiency
26.04.2017 · News
Dialog Semiconductor unveiled the first of a new series of charging products and one of the world’s most efficient switched capacitor DC/DC converters, the DA9313. The groundbreaking design of the DA9313 offers high peak efficiency and can power more than 50 W in less than 10 mm2 of board area, allowing developers to extend battery life and reduce charging time...
Step-Down Converter Delivers 25A at 12VOUT from Inputs Up to 60V
Step-Down Converter Delivers 25A at 12VOUT from Inputs Up to 60V
26.04.2017 · Circuits
The LTC3890 (dual outputs) and LTC3891 (single output) step-down DC/DC controllers directly accept inputs from 4 V to 60 V. This wide input range covers input voltages for single or double battery automotive environments, thus eliminating the need for snubbers and voltage suppression circuitry typically required to protect ICs during load dumps...
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