Power Fundamentals: Linear Regulator Fundamentals
... • The NPN-Quasi-LDO has the following Characteristics: – Requires that the input voltage be only 100mV to 700mV higher than the output voltage – Has a higher Ground pin current than NPN type – Requires careful selection of the output capacitor value and ESR ratings ...
... • The NPN-Quasi-LDO has the following Characteristics: – Requires that the input voltage be only 100mV to 700mV higher than the output voltage – Has a higher Ground pin current than NPN type – Requires careful selection of the output capacitor value and ESR ratings ...
Mutual / Self-Induction * Learning Outcomes
... 1. Set up two circuits – one consists of a galvanometer and a coil of wire (circuit 1), while the other consists of a d.c. power supply, open switch, and coil of wire (circuit 2). 2. Move the coils next to each other. 3. Close the switch in circuit 2 and note an instantaneous deflection in the galva ...
... 1. Set up two circuits – one consists of a galvanometer and a coil of wire (circuit 1), while the other consists of a d.c. power supply, open switch, and coil of wire (circuit 2). 2. Move the coils next to each other. 3. Close the switch in circuit 2 and note an instantaneous deflection in the galva ...
ELG4139: Power Diodes and Power Transistors
... • The name ‘thyristor’, is derived by a combination of the capital letters from THYRatron and transISTOR. • Thyristor has characteristics similar to a thyratron tube which is a type of gas filled tube used as a high energy electrical switch and controlled rectifier. • From the construction view poin ...
... • The name ‘thyristor’, is derived by a combination of the capital letters from THYRatron and transISTOR. • Thyristor has characteristics similar to a thyratron tube which is a type of gas filled tube used as a high energy electrical switch and controlled rectifier. • From the construction view poin ...
Multilayer Varistor Application Note
... MOVs are made of oxidized zinc grains and small amounts of other metal oxides between two metal electrode plates (see Figure 1). These large adjacent grains form diode junctions that allow current to flow in only one direction. These “diode junctions” arrange themselves in such a way that they perfo ...
... MOVs are made of oxidized zinc grains and small amounts of other metal oxides between two metal electrode plates (see Figure 1). These large adjacent grains form diode junctions that allow current to flow in only one direction. These “diode junctions” arrange themselves in such a way that they perfo ...
How electricity is taken to the home
... main centres in the State. Major switching centres and substations transform the very high voltages down to 66,000 volts which is used for the sub-transmission system around the metropolitan area and some country districts. Zone substations have further step-down transformers which lower the voltage ...
... main centres in the State. Major switching centres and substations transform the very high voltages down to 66,000 volts which is used for the sub-transmission system around the metropolitan area and some country districts. Zone substations have further step-down transformers which lower the voltage ...
SCR Over Current Protection
... condition. These are contradictory requirements necessitating voltage protection when fast-acting fuses are employed. Fuses when used, their arc voltages are kept below 1.5 times the peak circuit voltage. For small power applications it is pointless to employ high speed fuses for circuit protection ...
... condition. These are contradictory requirements necessitating voltage protection when fast-acting fuses are employed. Fuses when used, their arc voltages are kept below 1.5 times the peak circuit voltage. For small power applications it is pointless to employ high speed fuses for circuit protection ...
Transformers - Wellington High School
... Problem: A battery charger contains a transformer to convert 240V to 12 V. If the primary coil has 1200 turns, how many are there on the secondary? 60 turns ...
... Problem: A battery charger contains a transformer to convert 240V to 12 V. If the primary coil has 1200 turns, how many are there on the secondary? 60 turns ...
phantom500
... Three user selectable fan kick-in points for quiet computing under higher loads • Specially designed internal heatsinks and chassis heatsink for maximum heat dissipation • ATX12V v2.0 compliance and ultra-high-efficiency design (up to 85%) allows Phantom to generate up to 70% less heat and consume 2 ...
... Three user selectable fan kick-in points for quiet computing under higher loads • Specially designed internal heatsinks and chassis heatsink for maximum heat dissipation • ATX12V v2.0 compliance and ultra-high-efficiency design (up to 85%) allows Phantom to generate up to 70% less heat and consume 2 ...
InductorsACCrkts - University of Colorado Boulder
... AC-8 Light bulbs and appliances with motors (vacuum cleaners, blenders) use AC voltage to operate. But devices with electronic circuits (TV's, computers, phones, etc) need DC voltage to function. The "power supply" in computers and TV's converts the AC voltage from the wall socket into DC voltage ( ...
... AC-8 Light bulbs and appliances with motors (vacuum cleaners, blenders) use AC voltage to operate. But devices with electronic circuits (TV's, computers, phones, etc) need DC voltage to function. The "power supply" in computers and TV's converts the AC voltage from the wall socket into DC voltage ( ...
With effect from Academic Year 2016
... Power Semiconductor Diodes and Transistors: Types of power diodes- General purpose diodes -Fast recovery diodes -Their characteristics and applications. Bipolar Junction transistors, Power MOSFETs P-Channel, N- Channel. IGBTs -Basic structure and working, Steady state and switching characteristics-C ...
... Power Semiconductor Diodes and Transistors: Types of power diodes- General purpose diodes -Fast recovery diodes -Their characteristics and applications. Bipolar Junction transistors, Power MOSFETs P-Channel, N- Channel. IGBTs -Basic structure and working, Steady state and switching characteristics-C ...
An Improved Backward/Forward Sweep Load Flow
... the three benchmark systems. Table II shows comparisons of the execution time and the number of iterations. It is observed that the proposed method can be up to 35% more computationally efficient than the other two methods when the system size increases. ...
... the three benchmark systems. Table II shows comparisons of the execution time and the number of iterations. It is observed that the proposed method can be up to 35% more computationally efficient than the other two methods when the system size increases. ...
Technical inspection of remote power supply systems
... currents), contact losses, commercial losses (measurement inaccuracy, caused by current transformers low loading conditions) [10]-[12]. Load losses, which were calculated in accordance with measured data, equal to 8.6%. Leakage currents are about 1%. Moreover, it was estimated that commercial losses ...
... currents), contact losses, commercial losses (measurement inaccuracy, caused by current transformers low loading conditions) [10]-[12]. Load losses, which were calculated in accordance with measured data, equal to 8.6%. Leakage currents are about 1%. Moreover, it was estimated that commercial losses ...
WTCP 51 - Soldering Station Set
... Soldering Station Magnastat 50 W, 230 V The Weller Magnastat system operates through a ferro-magnetic device which changes ist characteristics when specific temperatures are reached. This causes it to either attract or repel a permanent magnet which operates a power supply switch. In this way power ...
... Soldering Station Magnastat 50 W, 230 V The Weller Magnastat system operates through a ferro-magnetic device which changes ist characteristics when specific temperatures are reached. This causes it to either attract or repel a permanent magnet which operates a power supply switch. In this way power ...
CAD Tools for Circuit Design
... variable from less than 1 volt to greater than 9 volts. The power supply should include a potentiometer to serve as the voltage adjustment control, diode protection from reverse polarity (see SkeeterSat for an example), as well as connections for input and output voltages, and ground. A fuse for sho ...
... variable from less than 1 volt to greater than 9 volts. The power supply should include a potentiometer to serve as the voltage adjustment control, diode protection from reverse polarity (see SkeeterSat for an example), as well as connections for input and output voltages, and ground. A fuse for sho ...
Series versus Parallel Circuits
... Parallel circuits have 2 or more branches for current to move through. The voltage is the same in each branch of the circuit, but more current flows through branches that have lower resistance. ...
... Parallel circuits have 2 or more branches for current to move through. The voltage is the same in each branch of the circuit, but more current flows through branches that have lower resistance. ...
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.