Determination of Small-Signal Equivalent Circuit Elements and
... We combine measurements of test patterns and the device itself at different bias points for this task. The most serious problem arises from the distributed nature of the base electrode which results in the feedback capacitance Cfb. There are various approaches to deal with this capacitance. The valu ...
... We combine measurements of test patterns and the device itself at different bias points for this task. The most serious problem arises from the distributed nature of the base electrode which results in the feedback capacitance Cfb. There are various approaches to deal with this capacitance. The valu ...
Speed Control of Induction Machines
... would correspond to changing the synchronous speed. With the slip now corresponding to the new synchronous speed, the operating speed is changed. This method of speed control is a stepped variation and generally restricted to two steps. If the changes in stator winding connections are made so that t ...
... would correspond to changing the synchronous speed. With the slip now corresponding to the new synchronous speed, the operating speed is changed. This method of speed control is a stepped variation and generally restricted to two steps. If the changes in stator winding connections are made so that t ...
Power & Disassembling a PC
... second. • Measured in amps (amperes) • Every device needs some current to operate and a power supply may be rated at the total amount of current it can supply at a certain voltage level, such as 20 amps at the 5volt level, or 8 amps at the 12-volt level. • Power – How much electrical work is being d ...
... second. • Measured in amps (amperes) • Every device needs some current to operate and a power supply may be rated at the total amount of current it can supply at a certain voltage level, such as 20 amps at the 5volt level, or 8 amps at the 12-volt level. • Power – How much electrical work is being d ...
AN51 - Power Conditioning for Notebook and Palmtop Systems
... C4 forms the dominant loop pole with a loop zero added by R1. C5 forms a higher frequency loop pole to control switching ripple at the VC pin. A floating 5V power supply for the switcher is generated by D2 and C3 which peak detect the output voltage during switch “off” time. This is a very efficient ...
... C4 forms the dominant loop pole with a loop zero added by R1. C5 forms a higher frequency loop pole to control switching ripple at the VC pin. A floating 5V power supply for the switcher is generated by D2 and C3 which peak detect the output voltage during switch “off” time. This is a very efficient ...
A+ Guide to Managing and Maintaining your PC, 6e
... • Form factor: specifies size, shape, features of device • Motherboard, power supply, and case share the same form factor, such as ATX • Three types of cases: desktop, tower, and notebook • Quantities that characterize electricity: voltage, current, resistance, and power • Current flows from hot wir ...
... • Form factor: specifies size, shape, features of device • Motherboard, power supply, and case share the same form factor, such as ATX • Three types of cases: desktop, tower, and notebook • Quantities that characterize electricity: voltage, current, resistance, and power • Current flows from hot wir ...
motorised pleated blinds
... The transformer can be located up to 15metres from the blind without noticeable voltage drop. This means that in principle the transformer can be located in a cupboard or out of sight behind a piece of furniture - as long as there’s a convenient power supply. The transformer can be plugged into a so ...
... The transformer can be located up to 15metres from the blind without noticeable voltage drop. This means that in principle the transformer can be located in a cupboard or out of sight behind a piece of furniture - as long as there’s a convenient power supply. The transformer can be plugged into a so ...
Design of Delta Primary - Transposed zigzag Secondary (DTz
... linear loads circulated only in the primary delta of power transformer so it would not flow into the supply system [5]. But this causes huge power loss (represented by heat) in the transformer and decrease the transformer efficiency [5,6,7]. There are many considerable research literatures which dis ...
... linear loads circulated only in the primary delta of power transformer so it would not flow into the supply system [5]. But this causes huge power loss (represented by heat) in the transformer and decrease the transformer efficiency [5,6,7]. There are many considerable research literatures which dis ...
Tips and tricks for high-speed, high-voltage
... Measuring current with a current probe adds loop area and inductance, as well as distortion and time delays that can complicate estimates for instantaneous power dissipation (V × I). Measuring currents by measuring the voltage across a low-value shunt resistor is also a common approach. However, the ...
... Measuring current with a current probe adds loop area and inductance, as well as distortion and time delays that can complicate estimates for instantaneous power dissipation (V × I). Measuring currents by measuring the voltage across a low-value shunt resistor is also a common approach. However, the ...
Demagnetization Diagnosis of Permanent Magnet Synchronous
... Recently, electric vehicles have got significant attention because it is more eco-friendly and efficient than internal combustion engine vehicles. Instead of an internal combustion engine, the electric vehicle has a motor for propulsion. The permanent magnet synchronous motor which has permanent mag ...
... Recently, electric vehicles have got significant attention because it is more eco-friendly and efficient than internal combustion engine vehicles. Instead of an internal combustion engine, the electric vehicle has a motor for propulsion. The permanent magnet synchronous motor which has permanent mag ...
Datasheet - Mouser Electronics
... Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild’s quality standards for handing and storage and provide access to Fairchild’s ...
... Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild’s quality standards for handing and storage and provide access to Fairchild’s ...
BD9E151NUX
... Also, for capacitor rating, on top of putting into consideration DC Bias characteristics, please use something whose maximum rating has sufficient margin with respect to the Output Voltage. Output ripple voltage is looked for using the following formula. The actual value of the output capacitor is n ...
... Also, for capacitor rating, on top of putting into consideration DC Bias characteristics, please use something whose maximum rating has sufficient margin with respect to the Output Voltage. Output ripple voltage is looked for using the following formula. The actual value of the output capacitor is n ...
Transformerless UPS : Concepts and Capabilities
... security, and should not be depended on as a safety feature • Battery terminals should be treated with the same caution and respect given to any AC terminal in the system If a UPS only has an input transformer, then the battery is not floating • An output transformer is required to isolate the batte ...
... security, and should not be depended on as a safety feature • Battery terminals should be treated with the same caution and respect given to any AC terminal in the system If a UPS only has an input transformer, then the battery is not floating • An output transformer is required to isolate the batte ...
Transformer modeling basics
... Leakage inductance Core loss--total losses Non-linear inductor model for magnetizing branch Transformers ...
... Leakage inductance Core loss--total losses Non-linear inductor model for magnetizing branch Transformers ...
B285-09024
... responsible use of SF6, by limiting the possibility of arcing in the SF6 medium. Because all Cooper Power Systems SF6 switchgear utilizes vacuum bottle switching medium, hazardous arcing by-products are mitigated. Cooper Power Systems believes that environmentally sustainable high fire point fluids ...
... responsible use of SF6, by limiting the possibility of arcing in the SF6 medium. Because all Cooper Power Systems SF6 switchgear utilizes vacuum bottle switching medium, hazardous arcing by-products are mitigated. Cooper Power Systems believes that environmentally sustainable high fire point fluids ...
BWR-15/165-D48
... specifications without the use of external input/output capacitors. In critical applications, input/output ripple and noise may be further reduced by installing low-ESR, tantalum or electrolytic capacitors across the input and/or output terminals. Output capacitors should be connected between their ...
... specifications without the use of external input/output capacitors. In critical applications, input/output ripple and noise may be further reduced by installing low-ESR, tantalum or electrolytic capacitors across the input and/or output terminals. Output capacitors should be connected between their ...
Alternating current
Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).