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the objectives of site grounding
the objectives of site grounding

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... In comparison to the first generation technology called PPH15X-10 [3], the gate module has been modified. A big part of the SiN used for device passivation has been replaced by a low dielectric material around the gate. This modification leads to a significantly reduced feedback capacitance Cf, redu ...
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... [4]. For medium and high end design, where speed performance and energy efficiency are both important, that much aggressive voltage scaling is not acceptable, and thereby, a near-threshold voltage design is more suitable for achieving relatively high energy efficiency without severe speed degradatio ...
EMI Conducted Interference
EMI Conducted Interference

... These common mode currents exit the converter’s chassis and return back to the converter through the input lines, or visa-versa. We will use the converter’s main switching power MOSFET as an example of a power component driving CM currents into the chassis. The MOSFET is one of many components that ...
MAX132 - Maxim
MAX132 - Maxim

... ±660mV for 60Hz mode operation or between ±390mV and ±550mV for 50Hz mode operation. The pseudodifferential input voltage is applied across pins 14 and 15 (IN HI, IN LO), and can range to within 2V of either supply rail. The inputs IN HI and IN LO lead directly to CMOS transistor gates, yielding ext ...
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171-M10 - Edwards Signaling

... • Line capacitance and load capacitance. An in-line resistor can be added in series immediately before the load to limit the inrush current. The resistor can only be added in series with the last wire just before the load. The voltage drop and the power rating of the resistor must also be calculated ...
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... impedance of 1 pF in parallel with 1 MW. Using this amplifier for drain voltages as high as 600 V will require a 1000:1 voltage attenuator that is flat from DC to >500 MHz and an input capacitance of less than 2 pF. The impedance and power dissipation of this attenuator needs to be taken into consid ...
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... GVDD is the gate drive supply for the device, regulated internally down to approximately 12 V, and decoupled with regards to board GND on the GREG pins through an external capacitor. GREG powers both the low side and high side via a bootstrap step-up conversion. The bootstrap supply is charged after ...
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... 11. Damage to the internal circuit or element may occur when the polarity of the Vcc pin is opposite to that of the other pins in applications. (I.e. Vcc is shorted with the GND pin while an external capacitor is charged.) Use a maximum capacitance of 1000μF for the output pins. Inserting a diode to ...
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... Before the connection between magnetism and electricity was discovered, electrostatic generators were used. They operated on electrostatic principles. Such generators generated very high voltage and low current. They operated by using moving electrically charged belts, plates, and disks that carried ...
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... temperature and takes large amount of power from the mains. There are many devices in household with resistance heaters: ovens, irons, heaters, hair dryers (they have both the asynchronous motor and the resistance heater), etc. G250 is not designed for that kind of devices! . In case of overloading ...
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fm receiver kit - ABRA Electronics

... In dealing with FM receivers, there are some terms that must be defined. First, let’s determine the term deviation as the frequency swing of the incoming FM signal. When no modulation is present, the incoming signal is a fixed frequency carrier wave (Fc). Positive deviation (Fp) is the increase in F ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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