RT9008 - Richtek
... The capacitor CCC improves the supply voltage stability to provide chip normal operation. ...
... The capacitor CCC improves the supply voltage stability to provide chip normal operation. ...
NE570 Compandor
... errors of 0.5% on negative swings and 2.5% on positive swings. The 1.5% average of these errors yields a mere 0.13 dB gain error. At very low input signal levels the bias current of Q2, (typically 50 nA), will become significant as it must be supplied by Q5. Another low level error can be caused by ...
... errors of 0.5% on negative swings and 2.5% on positive swings. The 1.5% average of these errors yields a mere 0.13 dB gain error. At very low input signal levels the bias current of Q2, (typically 50 nA), will become significant as it must be supplied by Q5. Another low level error can be caused by ...
rt41LURES IN THREE-PHASE STATOR WINDINGS
... surges. Voltage surges are often the result of switching power circuits, lightning strikes, capacitor discharges and solid-state power devices. ...
... surges. Voltage surges are often the result of switching power circuits, lightning strikes, capacitor discharges and solid-state power devices. ...
C Series C650 650 W Five Module Multi
... discuss and obtain written confirmation of your specifications. The use of Sanken products without the written consent of Sanken in applications where extremely high reliability is required (aerospace equipment, nuclear power-control stations, life-support systems, etc.) is strictly prohibited. The ...
... discuss and obtain written confirmation of your specifications. The use of Sanken products without the written consent of Sanken in applications where extremely high reliability is required (aerospace equipment, nuclear power-control stations, life-support systems, etc.) is strictly prohibited. The ...
Welding Machine - Ardin Caspain Industrial Development LLC
... • Ideally suitable for light, Medium and Heavy duty, all purpose industrial, structural welding applications both within shop floor and at project sites • These welding rectifiers can be also used for DC TIG welding applications by connecting suitable TIG control units (HF 2000 / 2000 AD / 3000 / 30 ...
... • Ideally suitable for light, Medium and Heavy duty, all purpose industrial, structural welding applications both within shop floor and at project sites • These welding rectifiers can be also used for DC TIG welding applications by connecting suitable TIG control units (HF 2000 / 2000 AD / 3000 / 30 ...
application aspects
... device gate current is the initial base drive for the npn transistor, whose collector current becomes base drive of the pnp transistor. The pnp collector current in turn becomes the base drive for the npn, and thus, beyond a certain point, external base drive is no longer required. In the case of a ...
... device gate current is the initial base drive for the npn transistor, whose collector current becomes base drive of the pnp transistor. The pnp collector current in turn becomes the base drive for the npn, and thus, beyond a certain point, external base drive is no longer required. In the case of a ...
Aztec • Leo • Mercury - Eclipse Lighting Inc.
... • BACKBOX — 16 Ga. aluminum (AL) with wire access on four sides and back through 7/8” dia. KO flattened water tight (Optional for surface conduit entry or standard with emergency battery). • CAGE — Modular design using 3/8” or 1/2” Square extruded aluminum bars (SQB) permanently secured by hidden ...
... • BACKBOX — 16 Ga. aluminum (AL) with wire access on four sides and back through 7/8” dia. KO flattened water tight (Optional for surface conduit entry or standard with emergency battery). • CAGE — Modular design using 3/8” or 1/2” Square extruded aluminum bars (SQB) permanently secured by hidden ...
Analog indicators
... Moving-iron meters indicate rms-values practically independent of wave form even of high harmonics. Error of indication may occur for extreme wave forms (e.g. phase gating controls) and / or frequencies above 100 Hz. These meters are not suitable for use with shunts or tachogenerators due to their h ...
... Moving-iron meters indicate rms-values practically independent of wave form even of high harmonics. Error of indication may occur for extreme wave forms (e.g. phase gating controls) and / or frequencies above 100 Hz. These meters are not suitable for use with shunts or tachogenerators due to their h ...
Electronic fluorescent lamp ballast
... effects with moving machinery and VDUs. In industrial plants, fluorescent tubes are used in pairs in a single light spreader, each lamp being fed from different phases, either real or virtual via a capacitor. This helps to eliminate flickering observed by the human eye. 3. ELECTRONIC ALTERNATIVES El ...
... effects with moving machinery and VDUs. In industrial plants, fluorescent tubes are used in pairs in a single light spreader, each lamp being fed from different phases, either real or virtual via a capacitor. This helps to eliminate flickering observed by the human eye. 3. ELECTRONIC ALTERNATIVES El ...
Limiting short-circuit currents in medium-voltage
... solution was to increase the voltage in order to meet the limitations of nominal current and short-circuit current. This meant using transformers to step-up the generated voltage to 33kV or higher, and then to step the voltage back down with substation transformers in order to supply the loads. Thes ...
... solution was to increase the voltage in order to meet the limitations of nominal current and short-circuit current. This meant using transformers to step-up the generated voltage to 33kV or higher, and then to step the voltage back down with substation transformers in order to supply the loads. Thes ...
chapter 6
... In the half wave rectifier (Fig. 6.1a) the capacitor is charged to Vmax, the maximum a.c. voltage of the secondary of the high voltage transformer in the conducting half cycle. In the other half cycle, the capacitor is discharged into the load. The value of the capacitor C is chosen such that the ti ...
... In the half wave rectifier (Fig. 6.1a) the capacitor is charged to Vmax, the maximum a.c. voltage of the secondary of the high voltage transformer in the conducting half cycle. In the other half cycle, the capacitor is discharged into the load. The value of the capacitor C is chosen such that the ti ...
EE14 paper1
... converters, the ground, and the high-pass filter form the closed loop for the harmonic current. Due to the unique characters of 3rd harmonic frequency components, it is selected to exchange the active power between series and shunt convertors in the DPFC. The reasons to select 3rd harmonic for excha ...
... converters, the ground, and the high-pass filter form the closed loop for the harmonic current. Due to the unique characters of 3rd harmonic frequency components, it is selected to exchange the active power between series and shunt convertors in the DPFC. The reasons to select 3rd harmonic for excha ...
lr5t-s series - Mercury Lighting
... • Each board consists of multiple mid-power, high efficacy LEDs in a precise layout eliminating the need for supplemental heat sinking. • The boards produce an even and diffuse light which maximizes optical efficiency. • Color temperatures available: 3000K, 3500K and 4000K. • Upon request: 5000K ...
... • Each board consists of multiple mid-power, high efficacy LEDs in a precise layout eliminating the need for supplemental heat sinking. • The boards produce an even and diffuse light which maximizes optical efficiency. • Color temperatures available: 3000K, 3500K and 4000K. • Upon request: 5000K ...
Episode 122 - Teaching Advanced Physics
... For an oscilloscope deflection is proportional to potential difference, and the CRO has high resistance, so it has all the properties of an ideal voltmeter. Unlike most voltmeters, many commercial CROs have one side of each input is earthed. This does not normally matter, but if the CRO is being use ...
... For an oscilloscope deflection is proportional to potential difference, and the CRO has high resistance, so it has all the properties of an ideal voltmeter. Unlike most voltmeters, many commercial CROs have one side of each input is earthed. This does not normally matter, but if the CRO is being use ...
Electrical measurement safety
... • Always wear arc-rated clothing • Guidelines for thermographers are distinctly called out • Includes guidelines for working with arc-resistant switchgear • PPE and clothing requirements for each H/R level spelled out • H/R level 2 now requires either a balaclava in combination with an arc-rated fac ...
... • Always wear arc-rated clothing • Guidelines for thermographers are distinctly called out • Includes guidelines for working with arc-resistant switchgear • PPE and clothing requirements for each H/R level spelled out • H/R level 2 now requires either a balaclava in combination with an arc-rated fac ...
FEASIBILITY OF A PLASMA CONTACT FOR FARADAY
... (http://www.mersen.com/uploads/tx_mersen/5-carbon-brush-technical-guidemersen.pdf). The mechanical factors include surface tribology of contacting surface – ideally the contact surface should neither be too smooth nor too rough, variable friction co-efficient of the brush, vibrations of the device ...
... (http://www.mersen.com/uploads/tx_mersen/5-carbon-brush-technical-guidemersen.pdf). The mechanical factors include surface tribology of contacting surface – ideally the contact surface should neither be too smooth nor too rough, variable friction co-efficient of the brush, vibrations of the device ...
Critical Points of Simplified Model for Ferroresonance Phenomenon in Single Phase Power Transformers
... The calculated results dictate a jump up in primary induced voltage V2 from 80.19V to 128.73V due to ferroresonance at supply voltage V1 of 42.59 V. The calculated results dictate a jump down in primary induced voltage V2 from 115.1V to 44.86V due to ferroresonance at supply voltage V1 of 30.42 ...
... The calculated results dictate a jump up in primary induced voltage V2 from 80.19V to 128.73V due to ferroresonance at supply voltage V1 of 42.59 V. The calculated results dictate a jump down in primary induced voltage V2 from 115.1V to 44.86V due to ferroresonance at supply voltage V1 of 30.42 ...
Shunt Active Power Filter for Harmonic Mitigation by
... the harmonic current distortion on distribution systems. They have many negative effects on power system equipment and point of common coupling, such as additional losses in underground cables, transformers and electric machines, operation of the protection systems, over voltage and shunt capacitor, ...
... the harmonic current distortion on distribution systems. They have many negative effects on power system equipment and point of common coupling, such as additional losses in underground cables, transformers and electric machines, operation of the protection systems, over voltage and shunt capacitor, ...
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.