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Digital Arc Lamp Power Supplies
Digital Arc Lamp Power Supplies

DP-78 - Accuphase
DP-78 - Accuphase

TWTs Still Drive High-Power Systems
TWTs Still Drive High-Power Systems

... vehicles (UAVs), the RF power generation section must share the available space with massive amounts of  signal processing, avionics, power supply, and other hardware. A solution to this problem was the creation of  the mini‐ TWT which, as its name suggests, is a small version of a conventional TWT  ...
EP24889895
EP24889895

electronics
electronics

... Introduction/Purpose: This experiment extends the application of Ohm’s Law to two or more components connected in simple series and parallel circuits. Analysis of our measurements should enable us to derive relationships between total resistance - RT, total current - IT, and the individual voltage d ...
Product sheet (PDF/389 kB)
Product sheet (PDF/389 kB)

... of up to 16 measuring channels during protective tripping or synchronization. Error events are recorded continuously and stored permanently with a high resolution time entry. The internal time base of the module can be synchronized to an external time source (e.g. IEEE 1588 Precision Time Protocol), ...
TAN150
TAN150

... 150 Watts, 50 Volts, Pulsed Avionics 960 - 1215 MHz ...
Multilevel Operation and Input Power Balancing for a Dual Two
Multilevel Operation and Input Power Balancing for a Dual Two

... The proposed dual two-level inverter configuration can be usefully implemented when using a battery supply system because, in this case, it is very simple to split the dc supply into two electrically separated dc sources. The dual two-level converter can also be considered as an alternative solution ...
AC TRANSMISSION
AC TRANSMISSION

safe limits pamphlet - Battle River Power Coop
safe limits pamphlet - Battle River Power Coop

... Work Safely – Verify Safe Limits Operating Voltage of Overhead Power Line ...
Mega Beast Product Demonstration
Mega Beast Product Demonstration

... Continuous or sporadic distortions of the 60-hertz (Hz) voltage sine waveform, usually caused by microprocessor based loads in the building such as computer power supplies, lighting ballasts, and electronic adjustable speed drives. Harmonics can also be transmitted from an energy user down the block ...
Improving Efficiency in AC drives: Comparison of Topologies and Device Technologies
Improving Efficiency in AC drives: Comparison of Topologies and Device Technologies

... The high-speed drives require higher switching frequencies. An AC induction motor or a Permanent Magnet motor (PM motor) with 2 poles specially designed for high speed operation can achieve up to 90,000 rpm, requiring a fundamental frequency (f O) of 1.5 kHz. Typically the PWM switching frequency (f ...
Protection components
Protection components

... In normal operation, the output relay is energised, the yellow LED is on. If a fault occurs - reversal in rotational direction of phases, the relay is de-energised (or cannot energise at switch-on) and the yellow LED goes out. Detection of phase failure : The RM3-TG2 continually measures each voltag ...
CAP200DG CAPZero-2 - Mouser Electronics
CAP200DG CAPZero-2 - Mouser Electronics

... ceramic capacitor of value up to 47 pF can also be placed between D1 and D2 terminals to attenuate the voltage applied between the CAP200DG terminals during surge. This optional external capacitor placement is shown as CEXT in Figure 4. It should be noted that use of an external capacitor in this wa ...
Preliminary Datasheet - MAP3702
Preliminary Datasheet - MAP3702

Types of Transducers and Their Applications
Types of Transducers and Their Applications

... By electronic differentiator or integrator As far as we know the linear displacement, finding of velocity can be done by differentiator. If it is an analog signal, op-amp differentiator may be used. If it is a digital signal, then use numerical methods for the differentiation. However, it is more us ...
Aalborg Universitet
Aalborg Universitet

AN2622
AN2622

... The TS4909 is a stereo audio amplifier designed to drive headphones in portable applications. The integrated phantom ground is a circuit topology that eliminates the heavy output coupling capacitors. This is of primary importance in portable applications where space constraints are very high. A sing ...
user`s manual
user`s manual

Direct Light-Triggered Solid-State Switches For Pulsed Power Applications  J. Przybilla
Direct Light-Triggered Solid-State Switches For Pulsed Power Applications J. Przybilla

... Triggering of an LTT is achieved by a 40mW light pulse generated from a laser diode. The wavelength of the emitted light should be between 850 and 1000nm. Typical pulse durations are about 10 µs. The light pulse is transmitted by a special light guide to the light sensitive area of the LTT. The cent ...
Opto-isolated High Voltage Meter (OHVM) - hot
Opto-isolated High Voltage Meter (OHVM) - hot

... design checks mathematically; QED. The circuit performed very well, with generally less then 5% error across full span of meter. ...
2 inputs and 2 outputs, current and voltage S20
2 inputs and 2 outputs, current and voltage S20

... Postfach 13 57 97803 Lohr, Germany Bgm.-Dr.-Nebel-Str. 2 97816 Lohr, Germany Tel. +49 9352 18-0 Fax +49 9352 18-8400 www.boschrexroth.com/electrics ...
Data Sheet IB IL DO 1 AC
Data Sheet IB IL DO 1 AC

CPA1800 Specifications
CPA1800 Specifications

... designed to achieve unsurpassed sonic performance and longterm reliability – even when operating under extreme stress – in touring or fixed installation applications. The CPA1800 provides high power output coupled with true clarity, and is well-suited for high-powered subwoofers and passive full ran ...
The Charge to Mass (e/m) Ratio of Electrons
The Charge to Mass (e/m) Ratio of Electrons

... the values of the analog output signals in which these current and voltage readings are used in your analysis. 3. If needed, select the Zero button from the tool bar and zero all sensors. 4. Select the Collect button on tool bar. The screen will then display a message “Waiting for trigger”. 5. Set ...
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Pulse-width modulation



Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.
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