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... 8. People talk about devices “using up” electricity, but the text says that electricity is never “consumed”. Explain this apparent contradiction. ...
... 8. People talk about devices “using up” electricity, but the text says that electricity is never “consumed”. Explain this apparent contradiction. ...
Tutorial 3 - Lehrstuhl für Technische Elektronik
... 3. What is the difference between a NMOS pass-gate and a CMOS transmission-gate with respect to the input voltage? What is the difference to an ideal switch? 4. Calculate the error of the output signal due to charge injection in dependence on the dimensions of the switch device and the hold capacita ...
... 3. What is the difference between a NMOS pass-gate and a CMOS transmission-gate with respect to the input voltage? What is the difference to an ideal switch? 4. Calculate the error of the output signal due to charge injection in dependence on the dimensions of the switch device and the hold capacita ...
Reverse polarity and overvoltage protection
... It is possible to automatically disconnect a circuit when the input voltage exceeds a predefined level. This is different from parallel transient voltage suppressor and fuse. Blow fuses have the obvious problem of being a one-time devices. PTC resettable fuses tend to be slow and they can conduct si ...
... It is possible to automatically disconnect a circuit when the input voltage exceeds a predefined level. This is different from parallel transient voltage suppressor and fuse. Blow fuses have the obvious problem of being a one-time devices. PTC resettable fuses tend to be slow and they can conduct si ...
42V High Power Density Buck Regulators in a Tiny QFN Package
... Power dissipation is a significant problem facing the designers of DC/DC converters in industrial and automotive applications, where high currents are required, but space is limited. It is possible to produce a highly efficient regulator from high performance discrete components, but expense and s ...
... Power dissipation is a significant problem facing the designers of DC/DC converters in industrial and automotive applications, where high currents are required, but space is limited. It is possible to produce a highly efficient regulator from high performance discrete components, but expense and s ...
Power electronics basics
... • The inductance gives an indication of electric inertia. Inductors will tend to hold its current fixed. • Any attempt to change the current in an inductor will be answered with an opposing voltage by the inductor. If the current tends to drop, the voltage generated will tend to act as an electromot ...
... • The inductance gives an indication of electric inertia. Inductors will tend to hold its current fixed. • Any attempt to change the current in an inductor will be answered with an opposing voltage by the inductor. If the current tends to drop, the voltage generated will tend to act as an electromot ...
Electronics 101
... MOSFET, BJT OR RELAY? • There is no general rule here, but always think about those factors: • If you use PWM, forget about relays • Some MOSFET require a Gate voltage higher than logic power supplies • Old power BJT transistors have really low gain (can be as low as 10). In that case, the base cur ...
... MOSFET, BJT OR RELAY? • There is no general rule here, but always think about those factors: • If you use PWM, forget about relays • Some MOSFET require a Gate voltage higher than logic power supplies • Old power BJT transistors have really low gain (can be as low as 10). In that case, the base cur ...
Design of 3.67 GHz RF Power Amplifier
... ● Design and simulate an RF power amplifier that operates between 2 and 4 GHz ● Use ADS software for design and simulation ...
... ● Design and simulate an RF power amplifier that operates between 2 and 4 GHz ● Use ADS software for design and simulation ...
Bipolar transistors II, Page 1 Bipolar Transistors II
... Bipolar transistors II, Page 3 Plot I vs. V for this supply by loading it. Choose several load resistors from 2kΩ to 100Ω. As the current increases do you note any change in the curve? If yes, comment on possible reasons. Note: The zener-regulated pass transistor developed in this lab is an accepta ...
... Bipolar transistors II, Page 3 Plot I vs. V for this supply by loading it. Choose several load resistors from 2kΩ to 100Ω. As the current increases do you note any change in the curve? If yes, comment on possible reasons. Note: The zener-regulated pass transistor developed in this lab is an accepta ...
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Medical PSU FSP015-RCMM
... Medical PSU FSP015-RCMM DESCRIPTION This series of AC /DC wall mount switching power supplies are for 15 watts of continuous output power. They are enclosed in a 94V-1 rated polyphenylene-oxide case with four types of interchangeable AC plugs: European plug, UK plug and North American plugs. All mod ...
... Medical PSU FSP015-RCMM DESCRIPTION This series of AC /DC wall mount switching power supplies are for 15 watts of continuous output power. They are enclosed in a 94V-1 rated polyphenylene-oxide case with four types of interchangeable AC plugs: European plug, UK plug and North American plugs. All mod ...
A Novel Sepic Based Dual Output DC-DC
... the efficiency and it tracks the maximum power from the irradiation. This method computes the maximum power and controls directly the extracted power from the PV by changing the duty cycle in the Multi level SEPIC converter. The voltage produced by High Gain Multi level SEPIC converter is higher whe ...
... the efficiency and it tracks the maximum power from the irradiation. This method computes the maximum power and controls directly the extracted power from the PV by changing the duty cycle in the Multi level SEPIC converter. The voltage produced by High Gain Multi level SEPIC converter is higher whe ...
Project : Switched capacitor voltage regulator
... converters based on switched capacitors (SCC) without magnetic components such as inductors or transformers. These converters are useful in low power mobile systems because of their light weight and their low EMI emissions. At a fixed conversion ratio, the SCC usually works with high efficiency due ...
... converters based on switched capacitors (SCC) without magnetic components such as inductors or transformers. These converters are useful in low power mobile systems because of their light weight and their low EMI emissions. At a fixed conversion ratio, the SCC usually works with high efficiency due ...
development and testing of electronic devices providing functioning
... generation of the plasma at the beginning of each cycle and for protective energy discharge in case of quench in the superconducting coils. To solve these problems a wide range of devices using different switching principles, schemes and methods has been developed at the NIIEFA. One of the key compo ...
... generation of the plasma at the beginning of each cycle and for protective energy discharge in case of quench in the superconducting coils. To solve these problems a wide range of devices using different switching principles, schemes and methods has been developed at the NIIEFA. One of the key compo ...
Performance of Regulated Supplies
... Av is the differential-mode voltage gain of the op-amp, whilst ro is the output resistance of the emitter follower without feedback (very low -- and the feedback makes it lower still). From the non-inverting input of the op-amp onwards, we can regard 'Av' as being the diff-mode voltage gain of the o ...
... Av is the differential-mode voltage gain of the op-amp, whilst ro is the output resistance of the emitter follower without feedback (very low -- and the feedback makes it lower still). From the non-inverting input of the op-amp onwards, we can regard 'Av' as being the diff-mode voltage gain of the o ...
One Solution for Step-Up DC-DC Converter Based Power Supply for
... transfer, smaller components and less thermal management are required. Third, the energy stored by an inductor in a switching regulator can be transformed to output voltages that can be greater than the input. ...
... transfer, smaller components and less thermal management are required. Third, the energy stored by an inductor in a switching regulator can be transformed to output voltages that can be greater than the input. ...
Buck-Boost Converter Introduction A Buck
... frequencies or at high voltages may use bipolar transistors instead of MOSFETs; at low frequencies the higher speed switching of MOSFETs is less of an advantage. Also, in high voltage designs, silicon diodes may be used in preference to Schottky types due to the silicon diode’s higher reverse voltag ...
... frequencies or at high voltages may use bipolar transistors instead of MOSFETs; at low frequencies the higher speed switching of MOSFETs is less of an advantage. Also, in high voltage designs, silicon diodes may be used in preference to Schottky types due to the silicon diode’s higher reverse voltag ...
Construction of a Variable Frequency High Voltage Power Supply
... small, but numerous). However, before these can be studied, a high voltage DBD driver must be designed and implemented. Much strife may be had in designing such a driver with a respectable bandwidth when the available transistors (switches) can only handle a fraction of the desired output voltage. H ...
... small, but numerous). However, before these can be studied, a high voltage DBD driver must be designed and implemented. Much strife may be had in designing such a driver with a respectable bandwidth when the available transistors (switches) can only handle a fraction of the desired output voltage. H ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.