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IMPULSE ® •VG+ Series 3 Theory of Operation IMPULSE ® Drive
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... tells the motor what to do, then checks to see if it did it, then changes its command to correct for any error.” ...
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... the base-emitter voltage (VBE) of a transistor operated at constant current. However, this technique requires calibration to null out the effect of the absolute value of VBE, which varies from device to device. The technique used in the ADT7461 is to measure the change in VBE when the device is oper ...
Handwriting enabled harvested piezoelectric power using ZnO nanowires/polymer composite on paper substrate
Handwriting enabled harvested piezoelectric power using ZnO nanowires/polymer composite on paper substrate

... 4a) i.e. no bending, no c-axis potential gradient along the ZnO NWs will be observed. Nevertheless, when the NWs are bent, there will be two possible distinct situations. These two situations are illustrated in Figure 4b-c. In the situation of Figure 4b, the bending of the NWs leads to create a piez ...
Millimeter-Wave CMOS Power Amplifiers With High Output Power
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... provides excellent return loss for a balanced PA, which is useful for system integrations. However, a 3-dB coupler is designed based on quarter-wavelength broadside coupled lines, so the limited bandwidth and large area are expected when the number of combining transistors increases. Transformer pow ...
Chapter 11 — Electrical Integration
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... adder is needed to account for the extreme ambient temperatures of the environment. The adjusted ambient temperature is then used to determine the temperaturebased ampacity correction factor. ...
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... tracking called tracking efficiency. MPP tracking which is having an efficiency of 98–99 % is available in the market, each and every MPPT is based on a particular tracking algorithm. Current research states that all materials have physical limits on the electricity that they can generate. For examp ...
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... copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation o ...
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... allowed before programming the resistance value into the 50-TP memory. The AD5270/AD5271 do not require any external voltage supply to facilitate fuse blow and there are 50 opportunities for permanent programming. During 50-TP activation, a permanent blow fuse command freezes the resistance position ...
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... doped with gallium instead of arsenic. In this case, however, the gallium atoms take electrons from the silicon atoms, forming positively charged "holes" that can carry current. Because positive (p) holes carry the current, this type of material is referred to as a p-type semiconductor. • Unlike a t ...
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... not restrict duct with a height of 200 mm (8”) or less. Installations over 10 m/s (1800 FPM) air velocity are not recommended. Consult factory if air flow is vertical down or air velocity is over 10 m/s (1800 FPM). Do not install in ducted systems with total back pressure exceeding 150 mm (6”), wc. ...
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... The ProASICPLUS device contains an internal programming controller that controls the programming of the flash switches. Voltages used during programming are based on an internal voltage reference, but the controller needs a 1 MHz clock derived from either RCK or TCK as its time reference. The part i ...
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... about the mechanism of molecule device behaviour may be due in part to the challenges associated with probing molecular states in devices and obtaining well-controlled molecule–electrode interfaces. Performance metrics are also less satisfactory in most molecule-based memories in terms of device yie ...
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... A: These capacitances are parasitic capacitances. Since the terminals are made of conducting materials (e.g., metal), there will always be some capacitance associated with any two terminals. BJT designers and manufacturers work hard to minimize these capacitances—and indeed they are very small—but w ...
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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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