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AN4704, 3-phase Sensorless BLDC Motor Control Kit with the S12
AN4704, 3-phase Sensorless BLDC Motor Control Kit with the S12

25_InstructorSolutionsWin
25_InstructorSolutionsWin

... (c) The terminal voltage is zero since there is no potential drop across the ammeter. EVALUATE: An ammeter should never be connected this way because it would seriously alter the circuit! IDENTIFY: The terminal voltage of the battery is Vab  E  Ir. The voltmeter reads the potential difference betw ...
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... instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the ...
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... MOSFET is turned on. A voltage level below of this threshold indicates a faulty operation (Capload 2). Finally a third threshold at 2.0 V senses even short overcurrent during turn-on of the high-side MOSFET such as they are typical for reverse recovery currents of a diode (Capload 2). If one of thes ...
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current, resistance, and electromotive force

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ACPL-C797 - Avago Technologies

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... 2) Determine B using the Law of Biot-Savart, or Ampere’s Circuit Law if there is sufficient symmetry. 3) Calculate the total flux tot linking all the loops. 4) Multiply the total flux by the number of loops to get the flux linkage;  = Ntot. 5) Divide  by current I to get the inductance: L = /I. ...
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... Overvoltage Reset Output. OV is asserted low if a negative polarity input voltage drops below its associated threshold or if a positive polarity input voltage exceeds its threshold. The ADM12914-1 allows OV to be latched low. The ADM12914-2 holds OV low for an adjustable timeout period determined by ...
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... This logic style, as opposed to static, uses fewer transistors since it effectively replaces the whole PUN with a single precharge transistor, but adds another n-type transistor in the PDN. This would decrease the input capacitances to half, as well as the diffusion capacitance. The operation of the ...
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... The amplifiers are internally protected against overtemperature conditions. A thermal warning output, TFLAG, goes active when the die temperature approaches 150°C. The output stage may be turned off with the output disable pin OD. By tying the OD pin to the thermal warning output (TFLAG), the part w ...
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... Typically, standard in-amps are slow with an input bandwidth in the 10 to 100 KHz range. This can affect the ability of the amplifier to capture fast changes in current but, in most cases, this is not an issue. The in-amp must also be fast enough to recharge the input sample capacitance presented du ...
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... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
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An electronically tunable linear or nonlinear MOS resistor

... the contributions of the paper. II. LINEAR AND NONLINEAR RESISTORS USING MOS TRANSISTORS Electronically tunable bidirectional resistors can be implemented with MOS transistors whose source and drain terminals are symmetric and whose gate or bulk voltages may be varied to provide electronic control o ...
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Stray Voltage Test Procedure for Electrical Contractors

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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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