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FAN6751MR Highly-Integrated Green-Mode PWM Controller FA N
FAN6751MR Highly-Integrated Green-Mode PWM Controller FA N

... the VIN voltage increases, making the maximum output power at high-line input voltage equal to that at low-line input. The value of R-C network should not be so large it affects the power limit (shown as Figure 14). Usually, R and C are less than 100Ω and 470pF, respectively. ...
Week 1-2
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... • In the early 19th century Georg Ohm proved that the amount of current through a resistance is proportional to the voltage across it and inversely proportional to its resistance. Hence V I R • This can also be written as:V  IR • Thus; if there is 1Volt across a resistor and it has 1A flowing thro ...
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... the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch causing the junction temperature to rise, a thermal protection circuit shuts o ...
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... from analog signal to digital signal. After converted to digital signal, it is easy for us to process the signal such as encoding, filtering the unwanted signal and so on. Besides, the quality of digital signal is better than analog signal. This is because the digital signal can be easily recovered ...
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... Pulse Width Modulated (PWM) voltage source inverters (VSI’s) are widely utilized in ac motor drive application. Many PWM-VSI drives employ carrier based PWM methods due to fixed-switching frequency, low ripple current & welldefined harmonic spectrum characteristics. While designing power electronics ...
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... In an electric system the voltage and current can be controlled. The voltage control uses parallel connected devices, while the flow or current control requires devices connected in series with the lines. In the substation to switch off fault transformer when relay protection responses high-frequenc ...
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Valve RF amplifier



A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical radio frequency signal.Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of transmitters, transmitter output stages switching to transistors somewhat later. Specially constructed valves are still in use for very high power transmitters, although rarely in new designs.
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