Electronic Troubleshooting
... Power Control Devices • SCRs • Basic DC operation • A simple SCR DC circuit is shown – top right and the equivalent transistor circuit that will be analyzed – bottom right • With E applied and Vin = 0V • IG1 = 0V and Q1 is off • With Q1 off Q2 lacks base current and is off • With both transistors o ...
... Power Control Devices • SCRs • Basic DC operation • A simple SCR DC circuit is shown – top right and the equivalent transistor circuit that will be analyzed – bottom right • With E applied and Vin = 0V • IG1 = 0V and Q1 is off • With Q1 off Q2 lacks base current and is off • With both transistors o ...
012272276AH
... ABSTRACT – In this paper new facts device is introduced called DPFC (Distributed power flow controller).The DPFC and UPFC has the same control capability, which comprises the adjustment of the line impedance, the transmission angle, and the bus voltage. The DPFC can compensate active and reactive po ...
... ABSTRACT – In this paper new facts device is introduced called DPFC (Distributed power flow controller).The DPFC and UPFC has the same control capability, which comprises the adjustment of the line impedance, the transmission angle, and the bus voltage. The DPFC can compensate active and reactive po ...
Harmonic elimination in DG with Renewable Energy Sources Based
... results in a failure or a mis operation of end user equipments. Utility distribution networks, sensitive industrial loads and critical commercial operations suffer from various types of outages and service interruptions which can cost significant financial losses. With the increase in load demand, t ...
... results in a failure or a mis operation of end user equipments. Utility distribution networks, sensitive industrial loads and critical commercial operations suffer from various types of outages and service interruptions which can cost significant financial losses. With the increase in load demand, t ...
ROBERT S
... Designed a high voltage charge pump, which powered a set of linear regulators that were to be integrated on chip. The process used had a maximum gate-to-source voltage specification lower than the supply voltage, which complicated the design. Switches were needed instead of diodes because a low drop ...
... Designed a high voltage charge pump, which powered a set of linear regulators that were to be integrated on chip. The process used had a maximum gate-to-source voltage specification lower than the supply voltage, which complicated the design. Switches were needed instead of diodes because a low drop ...
BASICS OF ELECTRIC CIRCUITS Basic concepts
... In the above illustration, does the element absorb power or supply power? p(t) = v(t) . i(t) Or simply, p = v ⋅ i The product of v ⋅ i with their attendant signs, defines the magnitude and sign of the power. If p(t ) is positive, then the element absorbs power. If p(t ) is negative, then the element ...
... In the above illustration, does the element absorb power or supply power? p(t) = v(t) . i(t) Or simply, p = v ⋅ i The product of v ⋅ i with their attendant signs, defines the magnitude and sign of the power. If p(t ) is positive, then the element absorbs power. If p(t ) is negative, then the element ...
9 – The Power MOSFET 3
... In power electronics applications, power MOSFETs are operated at high frequencies in order to reduce the size of the magnetic components. In order to reduce the switching losses, the power MOSFETs are maintained in either the on-state (conduction state) or the off-state (forward blocking) state. ...
... In power electronics applications, power MOSFETs are operated at high frequencies in order to reduce the size of the magnetic components. In order to reduce the switching losses, the power MOSFETs are maintained in either the on-state (conduction state) or the off-state (forward blocking) state. ...
A new type electromagnet controller for isotope ratio mass
... current is can be made in a continuous manner by setting of the width of the current pulses. That width can be adjusted by means of precise potentiometer (voltage divider) or by a computer controlled reference voltage. The only drawback – typical for all switching controllers – is a little modulatio ...
... current is can be made in a continuous manner by setting of the width of the current pulses. That width can be adjusted by means of precise potentiometer (voltage divider) or by a computer controlled reference voltage. The only drawback – typical for all switching controllers – is a little modulatio ...
Programmable Electronic Voltage Burden
... Programmable electronic current burden 3695 power cable. Please specify line voltage when ordering (230 V / 50 Hz or 110 V / 60 Hz). ...
... Programmable electronic current burden 3695 power cable. Please specify line voltage when ordering (230 V / 50 Hz or 110 V / 60 Hz). ...
Basic Electrical Engineering Laboratory
... Covering the key areas of electrical power and machines. Provided with industrial machines of small physical size but with characteristics typical of larger machines. ...
... Covering the key areas of electrical power and machines. Provided with industrial machines of small physical size but with characteristics typical of larger machines. ...
Dynamic Resistance
... In a standard power supply that regulates output voltage the load resistance has a simple calculation: RO = VO / IO LEDs are PN junction diodes with a dynamic resistance that shifts as their forward current changes. When the load is an LED or string of LEDs, the load resistance is replaced with the ...
... In a standard power supply that regulates output voltage the load resistance has a simple calculation: RO = VO / IO LEDs are PN junction diodes with a dynamic resistance that shifts as their forward current changes. When the load is an LED or string of LEDs, the load resistance is replaced with the ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.