MOC3040 MOC3041
... They are designed for use with a triac in the interface of logic systems to equipment powered from 220 Vac lines, such as solid-state relays, industrial controls, motors, solenoids and consumer appliances, etc. Simplifies Logic Control of 22o Vac power ...
... They are designed for use with a triac in the interface of logic systems to equipment powered from 220 Vac lines, such as solid-state relays, industrial controls, motors, solenoids and consumer appliances, etc. Simplifies Logic Control of 22o Vac power ...
17-PN-Junction
... kelvin.) In practice, the measured voltage includes that across the bulk of the semiconductor as well as contact potentials where the metal wires are joined to the semiconductor. The latter to is small and the effects of the former can be minimized by taking the slope at small currents where the pro ...
... kelvin.) In practice, the measured voltage includes that across the bulk of the semiconductor as well as contact potentials where the metal wires are joined to the semiconductor. The latter to is small and the effects of the former can be minimized by taking the slope at small currents where the pro ...
8.3.3 series and parallel circuits
... Connected in series/parallel to prevent significant changes in current and voltage in the circuit Voltmeter is attached in parallel and have high resistance o When voltage is constant, V=IR – a high resistance will reduce current passing through o Current divides between paths – low current reduces ...
... Connected in series/parallel to prevent significant changes in current and voltage in the circuit Voltmeter is attached in parallel and have high resistance o When voltage is constant, V=IR – a high resistance will reduce current passing through o Current divides between paths – low current reduces ...
Introduction to(GMAW) Gas Metal Arc Welding
... •Requires special gas mixtures •Decreased warpage is possible •Decreased need for jigs or ...
... •Requires special gas mixtures •Decreased warpage is possible •Decreased need for jigs or ...
AC Generation – Vocabulary Terms
... A component of a transformer. The iron or steel core provides a controlled path for the magnetic flux generated in the transformer by the current flowing through the ...
... A component of a transformer. The iron or steel core provides a controlled path for the magnetic flux generated in the transformer by the current flowing through the ...
Lab 8 - La Salle University
... its frequency to 10Hz. It will serve as an alternating voltage supply. The box with the sine wave is an oscilloscope (found on the right, fourth from the top). Think of the oscilloscope as a time-dependent voltmeter. First build the circuit above without the diode. Run a simulation and place a copy ...
... its frequency to 10Hz. It will serve as an alternating voltage supply. The box with the sine wave is an oscilloscope (found on the right, fourth from the top). Think of the oscilloscope as a time-dependent voltmeter. First build the circuit above without the diode. Run a simulation and place a copy ...
Lesson 6 - Electric Current
... electrode, making it negative. A deficit of electrons on the other electrode make it positive. An electric field is produced that forces the electrons to move in one direction through the wire. ...
... electrode, making it negative. A deficit of electrons on the other electrode make it positive. An electric field is produced that forces the electrons to move in one direction through the wire. ...
LectureOutline-Circuits [Compatibility Mode]
... When there is current in a circuit as a result of a voltage, the electric power delivered to the circuit is: ...
... When there is current in a circuit as a result of a voltage, the electric power delivered to the circuit is: ...
Silicon Controlled Rectifier (SCR) notes
... Silicon Controlled Rectifiers, almost exclusively referred to as SCRs, are one of a small group of devices known as Thyristors. They (SCRs) are three terminal devices that perform in a manner similar to a silicon diode with an ‘On’ switch but no ‘Off’ switch. That is, they will not conduct even if f ...
... Silicon Controlled Rectifiers, almost exclusively referred to as SCRs, are one of a small group of devices known as Thyristors. They (SCRs) are three terminal devices that perform in a manner similar to a silicon diode with an ‘On’ switch but no ‘Off’ switch. That is, they will not conduct even if f ...
nakuru district sec. schools trial examination – 2014
... Hard x-rays have very short wavelength, thus high penetrating power while soft x-rays have longer wavelength, hence less penetrating power ...
... Hard x-rays have very short wavelength, thus high penetrating power while soft x-rays have longer wavelength, hence less penetrating power ...
A Unity Power Factor Bridgeless Isolated Cuk Converter
... A Unity Power Factor Bridgeless Isolated Cuk ConverterFed Brushless DC Motor Drive Abstract: This paper presents a power factor correction (PFC)-based bridgeless isolated Cuk converter-fed brushless dc (BLDC) motor drive. A variable dc link voltage of the voltage source inverter (VSI) feeding the BL ...
... A Unity Power Factor Bridgeless Isolated Cuk ConverterFed Brushless DC Motor Drive Abstract: This paper presents a power factor correction (PFC)-based bridgeless isolated Cuk converter-fed brushless dc (BLDC) motor drive. A variable dc link voltage of the voltage source inverter (VSI) feeding the BL ...
Ch 1
... important when working with circuits that use, for example, a 1.5 Volt battery. • The detailed model includes the reverse leakage current and the diode’s internal resistance. • Leakage current is not usually a problem with silicon. • Usually, the diode’s resistance is only important when the applied ...
... important when working with circuits that use, for example, a 1.5 Volt battery. • The detailed model includes the reverse leakage current and the diode’s internal resistance. • Leakage current is not usually a problem with silicon. • Usually, the diode’s resistance is only important when the applied ...
Electrical Engineering 1
... Crecraft D.I., Gorham D.A., Sparkes J.J., Electronics, Chapman&Hall 1993, ...
... Crecraft D.I., Gorham D.A., Sparkes J.J., Electronics, Chapman&Hall 1993, ...
to the complete article
... We must not forget in any case that we are building a no compromise amp. so the slight difference in cost cannot be important. For this purpose the interstage transformer used is the LL1671 designed by Lundahl with a low resistance and good output swing. Instead of other commercial products any Lund ...
... We must not forget in any case that we are building a no compromise amp. so the slight difference in cost cannot be important. For this purpose the interstage transformer used is the LL1671 designed by Lundahl with a low resistance and good output swing. Instead of other commercial products any Lund ...
DM-II PRO Digital Recorder / Data Logger
... • Comes as a complete kit, CT’s and PC software are included with product • Works with single and three phase systems (Y and delta) • Capable of recording all parameters (single or three phase) simultaneously • All readings are True RMS (TRMS) • User selectable rates allow recording from one hour to ...
... • Comes as a complete kit, CT’s and PC software are included with product • Works with single and three phase systems (Y and delta) • Capable of recording all parameters (single or three phase) simultaneously • All readings are True RMS (TRMS) • User selectable rates allow recording from one hour to ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.