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OC Series - Haefely Hipotronics
OC Series - Haefely Hipotronics

... features provided in these power supplies including input and backup breakers, adjustable overload relay (10-110% of rated current), fast overload sensor, zero-start interlock plus provision for external safety interlock, current-limiting resistor in output circuit, output shorting solenoid (and/or ...
Monolithic Non-Synchronous Step-Down
Monolithic Non-Synchronous Step-Down

... control which reduces output capacitance and simplifies external frequency compensation design. The TPS5405’s switching frequency is adjustable with an external resistor or fixed by connecting the frequency program pin to GND or leaving it unconnected. The TPS5405 starts switching at VIN equal to 3. ...
Model: SR-5b Switching Type Battery Management System Rev:b 0
Model: SR-5b Switching Type Battery Management System Rev:b 0

Capacitive Sensor Worksheet
Capacitive Sensor Worksheet

5722.Comparison Application Note draft2
5722.Comparison Application Note draft2

HMC439QS16G 数据资料DataSheet下载
HMC439QS16G 数据资料DataSheet下载

... The HMC439QS16G & HMC439QS16GE are digital phase-frequency detectors intended for use in low noise phase-locked loop applications for inputs from 10 to 1300 MHz. Its combination of high frequency of operation along with its ultra low phase noise floor make possible synthesizers with wide loop bandwi ...
ADD8754-EVAL Evaluation Kit for LCD Power
ADD8754-EVAL Evaluation Kit for LCD Power

... Evaluation boards as supplied “as is” and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectu ...
Slides - Powerpoint - University of Toronto Physics
Slides - Powerpoint - University of Toronto Physics

... Speed and Source of Electrons in a Circuit Misconceptions about electric current: “Electrical outlets in the walls of the homes are a source of electrons.” – NOT true: The outlets in homes are ac. Electrons make no net migration through a wire in an ac circuit. – When you plug a lamp into an outlet ...
Ohm`s Law (and Circuit Theory) Tutorial
Ohm`s Law (and Circuit Theory) Tutorial

... Another way resistors can be connected together is in parallel. Parallel resistors ends are connected together. This means that the tops of both resistors are connected at a common point and the bottoms of the resistors are connected together (at a different point than the tops of course). This impl ...
Low Power FM Radio Receiver
Low Power FM Radio Receiver

... Receive FM radio from 88.1 to 107.9 MHz Output audio at > 4mW per channel to standard 32-Ohm headphones (33-Ohm resistors used for testing) Adjustable volume/station Interact with user via LCD interface Entire design implemented on one PCB ...
Primary-Side Sensing Takes Complexity out of Isolated Flyback
Primary-Side Sensing Takes Complexity out of Isolated Flyback

... waveform. During the switch off-period, the diode delivers the current to the output, and the output voltage is thus reflected to the primary-side of the flyback transformer (or the switch node). The magnitude of the switch node voltage is the summation of the input voltage and reflected output volt ...
InductorsACCrkts - University of Colorado Boulder
InductorsACCrkts - University of Colorado Boulder

... The old formula P = IV works OK with AC quantities if we use Pavg , Irms , and Vrms. All the old DC formulas, V = IR , P = IV = V2 / R = I2 R , still work fine for AC if we use Irms, Vrms, and Pavg. ...
DIMLight M-LCR instructions manual New LCR universal dimmers
DIMLight M-LCR instructions manual New LCR universal dimmers

Tip120 - Adafruit
Tip120 - Adafruit

... (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
Worcester Polytechnic Institute
Worcester Polytechnic Institute

Ohms Law Lab – Activity
Ohms Law Lab – Activity

... measured in Volts, or as Joules/Coulomb. Voltage provides the energy in the circuit needed to do work. Resistance is how much current is slowed by a device measured in Ohms. Electrical resistance is needed in a circuit. It allows the energy to be transformed into heat, light, motion, etc. Without re ...
TC200 System
TC200 System

... The transmitter housings of the TC 200 Mini and TC 200 Easy differ only in terms of the available user interface. Both transmitters are able to send digital as well as proportional commands. The robust transmitters feature ergonomic design and are capable of being used in a wide range of application ...
UNIVERSITY OF SOUTHERN MAINE Department of Electrical
UNIVERSITY OF SOUTHERN MAINE Department of Electrical

... Deessiiggnnss)) Prof. MG Guvench ...
the flea - Acoustica.org.uk
the flea - Acoustica.org.uk

PDF
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... inverter based DSTATCOM using instantaneous realpower controller is found to be an effective solution for power line conditioning. DSTATCOM with the proposed controller reduces harmonics and provides reactive power compensation due to non-linear load currents; as a result source current(s) become si ...
LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier
LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier

... amps: the ±50pA bias current spec is still many times better than most bipolar parts. The spikes don’t match from one input pin to the other, and are sometimes (but not always) of opposite polarity. As a result, matching the impedances at the inputs (Figure 3) will not cancel the bias current, and m ...
ADR510 数据手册DataSheet 下载
ADR510 数据手册DataSheet 下载

... As with all shunt voltage references, an external bias resistor (RBIAS) is required between the supply voltage and the ADR510 (see Figure 2). RBIAS sets the current that is required to pass through the load (IL) and the ADR510 (IQ). The load and the supply voltage can vary, thus RBIAS is chosen base ...
Cree Power White Paper: The Characterization of dV/dt
Cree Power White Paper: The Characterization of dV/dt

RCV420 - Texas Instruments
RCV420 - Texas Instruments

LM2902/ LM2902A/ LM2904/ LM2904A Description Pin Assignments
LM2902/ LM2902A/ LM2904/ LM2904A Description Pin Assignments

... should be provided to prevent the input voltages from going negative more than -0.3 VDC (@ +25°C). An input clamp diode with a resistor to the IC input terminal can be used. To reduce the power supply current drain, the amplifiers have a class A output stage for small signal levels which converts to ...
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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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