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FIN1022 2 X 2 LVDS High Speed Crosspoint Switch FI N1022 2 X
FIN1022 2 X 2 LVDS High Speed Crosspoint Switch FI N1022 2 X

... 4. Fail safe protection on the outputs that draw less than 20 µA of current (worst case) on the LVDS inputs. In this condition, if the input is in fail safe selected to OUT0+/OUT0− (say) and the outputs are Enabled then OUT0+ = HIGH and OUT0− = LOW. This prevents noise from being amplified when the ...
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... Because a transducer can be a transmitter and a receiver of ultrasonic energy, it clearly stands to reason that a continuous voltage waveform can not be used. If such a waveform was used, the transducer would always function as a transmitter. Since the internally generated sound waves are stronger t ...
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... R52 and R53 sense the Q5 MOSFET current of the flyback and the signal is fed into pin #7 (CS), connected to the PWM comparator. This signal is thus compared with the COMP (pin #9) signal, which is coming from the optocoupler. The maximum power that the converter can deliver is set by a comparator li ...
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... With rail to rail functions, operation is guaranteed from power supplies as low as 1.2V. Moreover, since the XC221A series comes in an ultra small SOT-25 package, the series is particularly suited for use with various types of portable phones. Bandwidths of 550kHz and slew rates of 0.5V can be achie ...
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... With TR1 conducting, its base would have been about 0.6V, so as TR2 conducts TR1 base falls to 0.6 −9V = −8.4V, a negative voltage almost equal and opposite to that of the +9V supply voltage. This rapidly turns off TR1 causing a rapid rise in its collector voltage. Because a sudden voltage change on ...
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... Primary switched-mode power supply for sensors. Space saving DIN rail mounting as per IEC 60715. Wide-range nominal voltage input: 100 to 240 V AC; Output: 24 V DC, max. 30 V in the event of a fault; Nominal output current: 1.5 A. Connection to monophased a.c. networks or to two phase conductors of ...
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... Figure 2a shows the Human Body Model, and Figure 2b shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the device through a 1.5kΩ resistor. IEC1000-4-2 The IEC100 ...
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... several things must be taken into account. For example, given the schematic in Figure 4 as a possible (and at this point, a standard) application, certain external component values must be known in order to estimate CTMIN. Now, given the values of COUT, Load, RSENSE, VSS, and the resistors determini ...
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Complete Paper

... and portable electronics. Today, interleaved boost converters are widely applied in fuel cell, solar panels, and battery sources for boosting a very low voltage to an appropriate voltage for the alternating current (ac) inverters or front-end applications [1]. Their main advantages are the current d ...
- Nottingham ePrints
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... topology could be costly and bulky. Another option is to use a four-leg voltage source converter (VSC) on the load side where the fourth leg would then provide the needed neutral connection for the load. As reviewed in [14], there are several topologies that can handle zero sequence voltage and curr ...
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LMR16010 - Texas Instruments

... The LMR16010 implements constant frequency peak current mode control with Sleep-mode at light load to achieve high efficiency. The device is internally compensated, which reduces design time, and requires fewer external components. The switching frequency is programmable from 200 kHz to 2.5 MHz by a ...
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Pulse-width modulation



Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.
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