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Interleaved Boost Converter With Intrinsic Voltage
Interleaved Boost Converter With Intrinsic Voltage

... the downstream dc/dc converters. The boost PFC voltage-doubler circuit introduced in [3] can work in the entire universal-line range with an output voltage slightly higher than the maximum line voltage, i.e., around 400 V. However, the circuit requires a number of range-select switches to reconfigur ...
Braking Resistors
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Loop and Nodal Analysis and Op Amps
Loop and Nodal Analysis and Op Amps

2.5 Signal Sources Word Document | GCE AS/A
2.5 Signal Sources Word Document | GCE AS/A

... In our work so far we have described how some of the processing blocks of an electronic system can be constructed from individual components, e.g. time delays and pulse generators or ‘clock’s. In this section we will spend some time looking at how external variations in light or temperature can be c ...
Tracer™ UC400 Programmable Controller
Tracer™ UC400 Programmable Controller

... to power the expansion modules with the UC400 power supply. If the calculated load exceeds 200 mA or if you need more than two XM30 expansion modules, install separate DC power supplies. See “XM30 Expansion Modules,” p. 12. ...
Thevenin and Norton`s Theorem w/ Dep. Sources
Thevenin and Norton`s Theorem w/ Dep. Sources

... 1. We can find the Norton equivalent of any circuit made up of voltage sources, current sources, and resistors. The sources can be any combination of dependent and independent sources. 2. We can find the values of the Norton equivalent by finding the opencircuit voltage and short-circuit current. Th ...
APV25S0 - Calibration Circuit
APV25S0 - Calibration Circuit

... and of the coupling capacitors (40 fF), gives a voltage step ranging between 0 and 637.5 mV, in steps of 2.5 mV, and an injected charge between 0 and 25.5 fC, in steps of 0.1 fC. Given the tolerances on the load resitors and coupling capacitors values, large deviations from these figures is to be ex ...
MAX34408/MAX34409 SMBus Dual/Quad Current Monitor General Description Features
MAX34408/MAX34409 SMBus Dual/Quad Current Monitor General Description Features

... hardware output to provide an immediate indication to shut down any necessary external circuitry. The devices provide an ALERT output signal. Host communications are conducted through a SMBus-compatible communications port. ...
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LP5900 - Texas Instruments

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Inductance - CED Engineering

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... restriction on Cs, the maximum usable frequency of the CMCD is much higher than for Class E, given the same transistor. Limits on usable frequency do exist however, in the form of the ft of the device, etc. Two more amplifier topologies exist which are similar to CMCD. Inverse Class-F produces the s ...
Fixed Frequency Current Mode Controller for Flyback Converters
Fixed Frequency Current Mode Controller for Flyback Converters

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VCA820 数据资料 dataSheet 下载

... variable, voltage-controlled gain amplifier. It provides a differential input to single-ended conversion with a high-impedance gain control input used to vary the gain down 40dB from the nominal maximum gain set by the gain resistor (RG) and feedback resistor (RF). The VCA820 internal architecture c ...
NCP1236 Fixed Frequency Current Mode Controller for Flyback Converters
NCP1236 Fixed Frequency Current Mode Controller for Flyback Converters

... compensation, and a versatile latch input make this controller an excellent candidate for converters where components cost is the key constraints. In addition, the controller includes a new high voltage circuitry that combines a start−up current source and a brown−out detector able to sense the inpu ...
raw - Inria
raw - Inria

... eight pins are connected together. Thus touching LED's will short each other out. In LED2, the eight pins are independent. If any of then is driven high, the LED2 glows red. If any is driven low, it glows black. If some drive high and some low at the same time, the LED2 does not glow. Since the pins ...
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FFB3904 / FMB3904 / MMPQ3904 NPN Multi-Chip General Purpose Amplifier F FB3904

... Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's ...
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Diodes, Resistors and Capacitors - RIT - People

... After Aluminum has been deposited  Aluminum short ...
Leveraging the 40-nm Process Node to Deliver the World`s
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AN2299
AN2299

... special conditions and the results are impossible to reproduce in other locations, where there may be a different measuring set-up. Also short time repeatability due to noise and the resulting statistical effects will be bigger. The external influences on total system accuracy can be as big as or ev ...
Chapter 3 Special-Purpose Diodes
Chapter 3 Special-Purpose Diodes

1-100 TransistorCircuits
1-100 TransistorCircuits

... resistance of the BASE BIAS RESISTOR is selected so the voltage on the collector is half-rail voltage. In this case it is 2.5v. To keep the theory simple, here's how you do it. Use 22k as the load resistance. Select the base bias resistor until the measured voltage on the collector 2.5v. The base bi ...
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With Pre-Contacts Without Pre-Contacts

Josephson junctions as detectors for non-Gaussian noise B. Huard , H. Pothier
Josephson junctions as detectors for non-Gaussian noise B. Huard , H. Pothier

... on the current through the Josephson junction. Eq. (1) then yields the critical current I0  0.48 µA and the escape temperature Tesc  35 mK. The fact that the latter temperature is slightly larger than the fridge temperature comes mainly from the heating of the resistor Rb by the current pulses [18 ...
LTM8031 - Ultralow Noise EMC 36V, 1A DC/DC uModule Regulator
LTM8031 - Ultralow Noise EMC 36V, 1A DC/DC uModule Regulator

... minimum recommended values for the associated operating conditions. Applying capacitor values below those indicated in Table 1 is not recommended, and may result in undesirable operation. Using larger values is generally acceptable, and can yield improved dynamic response, if it is necessary. Again, ...
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TRIAC



TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.
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