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UCC29950 CCM PFC and LLC Combo Controller
UCC29950 CCM PFC and LLC Combo Controller

... The VCC pin is the power supply input terminal to the device. This pin should be decoupled with a 10-μF ceramic bypass capacitor in both Aux Bias and Self Bias Modes. An additional hold-up capacitor is needed at this pin if operating in Self Bias Mode. 5.1.2 MD_SEL/PS_ON MD_SEL/PS_ON pin. This pin c ...
Comparison of different electrical machines for Belt Driven
Comparison of different electrical machines for Belt Driven

Piranha MAS-2 User`s Manual - English - 1.0B
Piranha MAS-2 User`s Manual - English - 1.0B

... used together with all diagnostic X-ray equipment except for: - therapeutical X-ray sources. - X-ray equipment with tube potential below 20 kV. - X-ray equipment on which the instrument cannot be mounted properly, e.g. equipment where the beam field size is narrower than the active part of the detec ...
Pettersson - Tampereen teknillinen yliopisto
Pettersson - Tampereen teknillinen yliopisto

66xxA Series Operating Guide
66xxA Series Operating Guide

... mains through a three-conductor power cable, with the third wire firmly connected to an electrical ground (safety ground) at the power outlet. For instruments designed to be hard-wired to the ac power lines (supply mains), connect the protective earth terminal to a protective conductor before any ot ...
Dynasty 350, 700 Maxstar 350, 700
Dynasty 350, 700 Maxstar 350, 700

... see the symbol, watch out, and follow the related instructions to avoid the hazard. The safety information given below is only a summary of the more complete safety information found in the Safety Standards listed in Section 1-5. Read and follow all Safety Standards. Only qualified persons should in ...
Basics of Load Centers
Basics of Load Centers

Definition of Relay Terminology
Definition of Relay Terminology

... tests above are conducted under standard temperature and humidity (15°C to 35°C 59°F to 95°F, 25 to 75%). 2. The coil impressed voltage in the switching tests is a rectangular wave at the rated voltage. 3. The phase of the AC load operation is random. ...
SCR Power Control
SCR Power Control

... You can see and hear electrical noise when listening to an AM radio station. When a light switch is switched or an electric motor is operated near the radio, you hear “static” from the speakers. That static is really electrical noise picked up by the radio and converted into sound. The electrical no ...
Notional System Report Two - Rev18
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Surge Suppression Catalog
Surge Suppression Catalog

Power Supply Test Equipment
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Silicon Germanium BiCMOS Comparator Designed for Use in An
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... and finally the testing of the fabricated circuit. To verify the circuit would work at low temperatures, several new device models were created that could be used for simulations at 196°C. In addition to its properties as a standalone comparator, the circuit was also used as a building block in a SA ...
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CSSP-81031 Final Version - Spectrum

... for this high sensitivity being very narrow. If the circuit is able to shift its operating point automatically according to the change of the input level, the circuit may still be able to respond very sensitively to the input variation even though it has gone out of its initial range. This shiftable ...
Chapter 3 Special-Purpose Diodes
Chapter 3 Special-Purpose Diodes

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Design and Performance of 40 cm Ion Optics

... changing the ion optics’ material to one with a lower volumetric sputter erosion rate than molybdenum. Grid material technologies presently investigated include carbon-based materials, titanium, and ion-implanted materials.8-11 Another method for increasing ion optics service life involves increasin ...
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... Damaging effects of transients and surges UL SPD Types and NEC® locations ...
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On Control of Grid-connected Voltage Source Converters

... are complex and require careful planning, design and operation. The continuous growth of the electrical power system (especially, of large loads like industrial plants), resulting in growing electric power demand, has put greater emphasis on system operation and control. It is under this scenario th ...
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AC-DC sensitive residual current devices (Type B RCDs)

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Geomagnetically Induced Current

Residual Current Protective Devices
Residual Current Protective Devices

... currents. Another version in this device group is the residual current unit (RC unit). The customer can then mount the miniature circuit breaker versions suitable for a particular application (characteristic, rated current, switching capacity) on these RC units. Once assembled, these devices perform ...
LTM4608A - Low VIN, 8A DC/DC uModule with Tracking, Margining, and Frequency Synchronization
LTM4608A - Low VIN, 8A DC/DC uModule with Tracking, Margining, and Frequency Synchronization

... the phase relationship between the internal oscillator and CLKOUT. Tie it high for 2-phase operation, tie it low for 3-phase operation, and float or tie it to VIN/2 for 4-phase operation. MGN (B8): Margining Pin. Increases or decreases the output voltage by the amount specified by the BSEL pin. To d ...
LDO and Dual Switch with Controlled Rise Times for DSP and
LDO and Dual Switch with Controlled Rise Times for DSP and

... The OCx open-drain output is asserted (active low) when an overcurrent condition is encountered. The output will remain asserted until the overcurrent condition is removed. current sense A sense FET monitors the current supplied to the load. Current is measured more efficiently by the sense FET than ...
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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.
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