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TinyOS Hardware Tour - University of California, Berkeley
TinyOS Hardware Tour - University of California, Berkeley

... – LED1 and LED2 are used to control the signal strength potentiometer. They can also be used to control digital pots on sensor boards – PW3 can be used as a PWM output – PW4 can be used as a timer input capture, useful for PWM inputs ...
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... TQP369182 DC-6 GHz Gain Block Application Circuit Configuration ...
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... resonator, a negative resistance device, and a varactor diode, and features a half frequency output. ...
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Fast Pulse Width Modulation (FPWM) Technology for DC

... Fast Pulse Width Modulation (FPWM) Technology for DC-DC Converter, Featuring High-speed Response with a Clock-Synchronized Comparator Control method ...
8-Pin Power SOIC
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... These ultra-fast, high current MOSFET and IGBT gate drivers are optimized for high efficiency performance in motor drive and power conversion applications. With output current ratings of 1.5A to 30A, they are designed to switch the largest MOSFETs and IGBTs with minimum switching times and at freque ...
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Super low loss transformers

... Energy savings are achieved by reducing losses in the equipment being placed under load and vary according to the type of equipment, its age and its operating parameters. ...
MicroSet Ultrasonic Low Voltage Specification Sheet
MicroSet Ultrasonic Low Voltage Specification Sheet

... Description/Operation The ultrasonic sensor uses the Doppler principle. It produces a low intensity, inaudible sound and detects changes in sound waves caused by motion, such as walking into the room, reaching for the telephone, or turning in a chair. They are volumetric in nature and therefore not ...
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Universal LightProbe™ Penta High Sensitivity Sensors
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... In any case, our output voltages should never go beyond [0.10V; 3.99 V] in theory. ...
test results
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... Multi level testing has been performed in developing this unit. The printed circuit board has been tested thoroughly for track short, track open or any cracks. The input Op Amp and the feedback Op Amp has been tested for a long time using offset adjustments with current input fed before final optimi ...
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G2PW...10 Voltage monitoring in 3

... -25 to +55°C (in accordance with IEC 68-1) -25 to +40°C (in accordance with UL 508) -25 to +70°C -25 to +70°C 15% to 85% (in accordance with IEC 60721-3-3 class 3K3) 3 (in accordance with IEC 60664-1) 10 to 55Hz 0.35mm (in accordance with IEC 68-2-6) 15g 11ms (in accordance with IEC 68-2-27) ...
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... Biasing the detector diode can improve sensitivity,1 but only when the diode is loaded by an external DC resistance. Careful curve-tracer examination of the 1N5712 at the origin reveals that it follows the ideal diode equation, with scales of millivolts and nanoamperes. To use a zero-bias diode at t ...
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EUP3020 Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter

... The EUP3020 has dual independent constant frequency current mode PWM step-down converters. The EUP3020 is optimized for low voltage, Li-Ion battery powered applications where high efficiency and small size are critical. The EUP3020 uses resistor dividers to set two output voltages independently from ...
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CDR (Critical Design Review) - UCF EECS

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CIRCUIT FUNCTION AND BENEFITS

... Two external switches are used to force the part into its flash boot mode: By holding S1 low and toggling S2, the ADuC7061 will enter boot mode instead of normal user mode. In boot mode, the internal flash may be reprogrammed through the UART interface. ...
74F676 16-Bit Serial/Parallel-In, Serial
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PROVA SCRITTA DI AZIONAMENTI ELETTRICI L
PROVA SCRITTA DI AZIONAMENTI ELETTRICI L

... (T) the maximum torque can be obtained (once the inverter is given and the current is sufficient). 5) In an IPM machine, the field weakening operation is obtained (T) if Id < 0 (F) if Id > 0 (F) if Id = 0 6) In an induction machine, controlled according to the principle of field-oriented control, (F ...
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... The Transformer Monitoring System (TMS) is a device that connects to a pole mounted transformer and monitors: 1. Voltages and Currents coming into and out of the transformer 2. Overall temperature of the transformer 3. The phase angle of the voltage and current ...
Regatron Power Supplies 32 kW / 600 VDC / 66 A - Schulz
Regatron Power Supplies 32 kW / 600 VDC / 66 A - Schulz

CIRCUIT FUNCTION AND BENEFITS
CIRCUIT FUNCTION AND BENEFITS

... resolution. The resistor is placed as a shunt between each side of the differential pair, as shown in Figure 1. It has the effect of reducing the ac swing without changing the dc bias already established by the 50 Ω resistors and the DAC output current. The value of this ac swing-limiting resistor i ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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