Simulation of DC-DC Converter-Fed BLDC Motor Drive for PFC
... EFFICIENCY and cost are the major concerns in the development of low-power motor drives targeting household applications such as fans, water pumps, blowers, mixers, etc. [1], [2]. The use of the brushless direct current (BLDC) motor in these applications is becoming very common due to features of hi ...
... EFFICIENCY and cost are the major concerns in the development of low-power motor drives targeting household applications such as fans, water pumps, blowers, mixers, etc. [1], [2]. The use of the brushless direct current (BLDC) motor in these applications is becoming very common due to features of hi ...
OPTIMAL EFFICIENCY BASED PREDICTIVE CONTROL OF
... keeps rotor flux at constant rated value and ignores the machine losses. Consequently, the efficiency of the motor is poor especially when the load torque is low or zero. The main losses, about 90 % of the total losses are copper, core losses and stray-load losses [1-4]. A good machine design dictat ...
... keeps rotor flux at constant rated value and ignores the machine losses. Consequently, the efficiency of the motor is poor especially when the load torque is low or zero. The main losses, about 90 % of the total losses are copper, core losses and stray-load losses [1-4]. A good machine design dictat ...
Induction
... which I desire to operate and'which is to a whole train of oscillations concentrated in act as the secondary, still retaining the con the short interval of time of one oscillation. 15 nection with the exhaust pump, usually in This obviously results in saving the fric troducing more of the vapor than ...
... which I desire to operate and'which is to a whole train of oscillations concentrated in act as the secondary, still retaining the con the short interval of time of one oscillation. 15 nection with the exhaust pump, usually in This obviously results in saving the fric troducing more of the vapor than ...
Comprehensive Study of Forward and Fly Back Converter for
... magnetizing inductance must then follow all of the usual rules for inductors; in particular, volt-second balance must hold when the circuit operates in steady-state. This implies that the average voltage applied across every winding of the transformer must be zero. Let us replace the transformer of ...
... magnetizing inductance must then follow all of the usual rules for inductors; in particular, volt-second balance must hold when the circuit operates in steady-state. This implies that the average voltage applied across every winding of the transformer must be zero. Let us replace the transformer of ...
MT-095: EMI, RFI, and Shielding Concepts
... resistors will minimize the dc offset, the noise will remain. Figure 6 summarizes some popular low-pass filters for minimizing EMI. In applications where signal and return conductors aren't well-coupled magnetically, a commonmode (CM) choke can be used to increase their mutual inductance. Note that ...
... resistors will minimize the dc offset, the noise will remain. Figure 6 summarizes some popular low-pass filters for minimizing EMI. In applications where signal and return conductors aren't well-coupled magnetically, a commonmode (CM) choke can be used to increase their mutual inductance. Note that ...
Design Considerations for an LLC Resonant Converter
... The resonant inductor (Lr) and resonant capacitor (Cr) are in series The resonant capacitor is in series with the load 9 The resonant tank and the load act as a voltage dividerÆ DC gain is always lower than 1 (maximum gain happens at the resonant frequency) 9 The impedance of resonant tank can b ...
... The resonant inductor (Lr) and resonant capacitor (Cr) are in series The resonant capacitor is in series with the load 9 The resonant tank and the load act as a voltage dividerÆ DC gain is always lower than 1 (maximum gain happens at the resonant frequency) 9 The impedance of resonant tank can b ...
TORODIAL TRANSFORMER In 1831, Michael Faraday wound three
... controlled tension, then annealed and treated to fully develop the required magnetic characteristics of Torodial cores are never dependent on their assembly. The air gap in this core is zero. The super enameled copper wire is then wound by an automatic winding machine uniformly around the entire len ...
... controlled tension, then annealed and treated to fully develop the required magnetic characteristics of Torodial cores are never dependent on their assembly. The air gap in this core is zero. The super enameled copper wire is then wound by an automatic winding machine uniformly around the entire len ...
LM2596 - ONSemi
... The operation of this regulator topology has two distinct time periods. The first one occurs when the series switch is on, the input voltage is connected to the input of the inductor. The output of the inductor is the output voltage, and the rectifier (or catch diode) is reverse biased. During this ...
... The operation of this regulator topology has two distinct time periods. The first one occurs when the series switch is on, the input voltage is connected to the input of the inductor. The output of the inductor is the output voltage, and the rectifier (or catch diode) is reverse biased. During this ...
Embedded Magnetorquer Coil Design for Micro
... dissipation and magnetic moment remains stable where the number of coils connected in parallel or in series. When increasing the number of coils connected in parallel or in series, the power consumption and magnetic moment also increase in the same percentage. Current remains constant for the coils ...
... dissipation and magnetic moment remains stable where the number of coils connected in parallel or in series. When increasing the number of coils connected in parallel or in series, the power consumption and magnetic moment also increase in the same percentage. Current remains constant for the coils ...
RF2514 VHF/UHF TRANSMITTER Features
... In the first configuration, two inductors are connected in series between RESNTR- and RESNTR+. A resistor is then used to provide the DC bias to the balanced inductance node formed by the series connection of the inductors. Ideally, the two inductors should be equal in value, but a slight imbalance ...
... In the first configuration, two inductors are connected in series between RESNTR- and RESNTR+. A resistor is then used to provide the DC bias to the balanced inductance node formed by the series connection of the inductors. Ideally, the two inductors should be equal in value, but a slight imbalance ...
MAX8595X/MAX8596X High-Efficiency, 36V Step-Up Converters with T
... LCD backlighting in cell phones, PDAs, and other handheld devices. The series connection allows the LED currents to be identical for uniform brightness and minimizes the number of traces to the LEDs. The MAX8595X regulates constant LED current over the entire temperature range. The MAX8596X features ...
... LCD backlighting in cell phones, PDAs, and other handheld devices. The series connection allows the LED currents to be identical for uniform brightness and minimizes the number of traces to the LEDs. The MAX8595X regulates constant LED current over the entire temperature range. The MAX8596X features ...
Inductor
An inductor, also called a coil or reactor, is a passive two-terminal electrical component which resists changes in electric current passing through it. It consists of a conductor such as a wire, usually wound into a coil. When a current flows through it, energy is stored temporarily in a magnetic field in the coil. When the current flowing through an inductor changes, the time-varying magnetic field induces a voltage in the conductor, according to Faraday’s law of electromagnetic induction, According to Lenz's law the direction of induced e.m.f is always such that it opposes the change in current that created it. As a result, inductors always oppose a change in current, in the same way that a flywheel oppose a change in rotational velocity. Care should be taken not to confuse this with the resistance provided by a resistor.An inductor is characterized by its inductance, the ratio of the voltage to the rate of change of current, which has units of henries (H). Inductors have values that typically range from 1 µH (10−6H) to 1 H. Many inductors have a magnetic core made of iron or ferrite inside the coil, which serves to increase the magnetic field and thus the inductance. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electric circuits. Inductors are widely used in alternating current (AC) electronic equipment, particularly in radio equipment. They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. They are also used in electronic filters to separate signals of different frequencies, and in combination with capacitors to make tuned circuits, used to tune radio and TV receivers.