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MAX16936 36V, 220kHz to 2.2MHz Step-Down Converter with 28µA Quiescent Current General Description
MAX16936 36V, 220kHz to 2.2MHz Step-Down Converter with 28µA Quiescent Current General Description

Precision DC-to-AC power conversion by optimization
Precision DC-to-AC power conversion by optimization

... unit of dual-buck-type inverter is unidirectional buck circuit; thus, there is no shoot-through problem in the inverter and the freewheeling current flows through the independent diodes instead of body diodes of the switches, which is conducive to reducing the reverse recovery loss, increasing the s ...
megohmmeter
megohmmeter

... 3.2.2 CHARGING TIME. The charging time for a capacitor is determined bythe maximum current then may bedrawnfrom thepower supply(approximately 10 rna at 500 volts and 2 rna at 100 volts) and by the resistance in series with the capacitor. With the function switch set at CHARGE, the series resistance ...
T5 Basic Electricity Questions
T5 Basic Electricity Questions

... T5C08 What is the formula used to calculate electrical power in a DC circuit? A. Power (P) equals voltage (E) multiplied by current (I) B. Power (P) equals voltage (E) divided by current (I) C. Power (P) equals voltage (E) minus current (I) D. Power (P) equals voltage (E) plus current (I) ...
MAX1917 Tracking, Sinking and Sourcing, Synchronous Buck General Description
MAX1917 Tracking, Sinking and Sourcing, Synchronous Buck General Description

... The MAX1917 provides a complete power-management solution for DDR memory. It contains a synchronous buck controller and an amplifier to generate 1/2VDDR voltage for VTT and VTTR. The VTT and VTTR voltages are maintained within 1% of 1/2VDDR. The controller operates in synchronous rectification mode ...
Research Article Matrix Converter Based Unified Power Quality
Research Article Matrix Converter Based Unified Power Quality

... Result for matrix converter harmonic: Figure 7 shows the matrix converter output voltage and its harmonics. The matrix converter produces lower than 40% of harmonicas shown in Fig. 7a and its corresponding matrix converter voltage is shown in Fig. 7b. So the matrix converter produces the less harmon ...
AD01414611470
AD01414611470

... phase cluster of STATCOM consists of there H-bridge cells connected in series. The feature is that each H-bridge cell generates a different output voltage vc,2vc,4vc.By this each phase cluster can generate 15-level output voltage. According to this configuration every H-bridge cell has isolated dc c ...
magnetically coupled circuit
magnetically coupled circuit

BD8311NUV
BD8311NUV

... ROHM’s High-efficiency Step-up Switching Regulator Built-in Power MOSFET BD8311NUV generates step-up output including 8 V or 10 V from 4 batteries, batteries such as Li2cell etc. or a 5 V fixed power supply line. This IC allows easy production of small and a wide range of output current, and is equi ...
LT1533 - Ultralow Noise1A Switching Regulator
LT1533 - Ultralow Noise1A Switching Regulator

... Reducing EMI from switching power supplies has traditionally invoked fear in designers. Many switchers are designed solely on efficiency and as such produce waveforms filled with high frequency harmonics that then propagate through the rest of the power supply. The LT1533 provides control over two o ...
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... allowed to swing in both positive and negative. If both the inputs are allowed to swing in both positive and negative directions, the operation is four quadrant multiplier operations. 7. In what way VCO is different from other oscillator (May/June 2012) Ans: 1.To adjust the output frequency to match ...
how diodes work - Wiki - Joe Knows Electronics
how diodes work - Wiki - Joe Knows Electronics

... numbers of carriers from the adjoining highly doped layers. This dramatically decreases the resistance of the diode, from 10 kohms at a microamp of forward current to about 20 ohms at a milliamp of forward current for the BA479 PIN diodes in your kit. These come in the DO-35 glass case. Another attr ...
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Small Current Output Power Management Switch ICs

TPS62110-Q1 17-V 1.5-A Synchronous Step
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... range of 100% to 10%. Connecting the SYNC pin to a voltage greater than 1.5 V forces the converter to operate permanently in the PWM mode even at light or no-load currents. The advantage is that the converter operates with a fixed switching frequency that allows simple filtering of the switching fre ...
VISHAY SI786 datasheet
VISHAY SI786 datasheet

High Voltage Power Supplies
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... Low output noise is essential when using sensitive measurement instruments to make leakage current or high resistivity measurements. The maximum output ripple for the Model 2290-10 is less than 1V RMS. The maximum output ripple of the Model 2290-5 is 100mV RMS. Two selectable, internal filters on th ...
Figure 12 - Octopart
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... will ignore the overcurrent indicator for the leading edge blanking time at the beginning of each cycle to avoid any turn-on noise glitches. Once overcurrent indicator is set true, overcurrent limiting is triggered. The high-side MOSFET is turned off for the rest of the cycle after a propagation del ...
Rosemount 2024 Differential Pressure Transmitter
Rosemount 2024 Differential Pressure Transmitter

... liquid pressure and differential pressure service, place taps to the sides of the line to prevent sediment deposits, and mount the transmitter beside or below these taps so gases can vent into the process line. For gas pressure and differential pressure service, place taps in the top or side of the ...
Basics of Electricity
Basics of Electricity

... from one circuit to another magnetically by the process of electromagnetic induction, or mutual induction • Principle of electromagnetic induction: • An alternating magnetic flux is produced in the magnetic core of the transformer by passing an AC current through the primary winding • The magnetic f ...
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Digital flowmeter for continuous flow measurement

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BD8184MUV

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... low power, low cost [1-3]. Recently, the solid-state capacitive fingerprint sensors are adopted on mobile application environment like a smartphone. Most of them rely on capacitive coupling between the finger and matrix of small metal plates to detect ridges and valleys on the finger surface. Each p ...
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INF5490 RF MEMS

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wireless remote controller supplemental guide
wireless remote controller supplemental guide

... conveyor/spinner). If clutch remains engaged, after engine is turned off, it could lead to a slow electrical drain on the 12V battery. 2. If an unregulated voltage (example: sparking the battery cable terminal to the 12V battery post.) is sent to the Base Unit it could erase the Base Unit programmin ...
difference between run and start capacitors
difference between run and start capacitors

... DIFFERENCE BETWEEN RUN AND START CAPACITORS The simplest way to explain the mechanics of a capacitor would be to compare it to a battery; both store and release electricity. Capacitors are charged with electricity then release its stored energy at a rate of sixty times per second in a 60 cycle alter ...
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Spark-gap transmitter



A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""
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