Electrical Engineering and Control System Lab
... Direct load test is conducted to determine the efficiency characteristics and regulation characteristics of the given transformer. An ideal transformer is supposed to give constant secondary voltage irrespective of the load current. But, practically the secondary voltage decreases as the transformer ...
... Direct load test is conducted to determine the efficiency characteristics and regulation characteristics of the given transformer. An ideal transformer is supposed to give constant secondary voltage irrespective of the load current. But, practically the secondary voltage decreases as the transformer ...
Designing Detectors for RF/ID Tags Application Note 1089 Abstract
... slope of the Vo/Pin curve flattens out to more nearly approximate a linear (voltage output proportional to RF voltage input) response. Methods have been developed to extend the square law range (3),(4), but they are not of interest in the design of RF/ID tags. From Figure 5, it can be seen that the ...
... slope of the Vo/Pin curve flattens out to more nearly approximate a linear (voltage output proportional to RF voltage input) response. Methods have been developed to extend the square law range (3),(4), but they are not of interest in the design of RF/ID tags. From Figure 5, it can be seen that the ...
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... As shown in Fig.2.2 high voltage diodes with low reverse-recovery charge and corresponding low reverse recovery time are connected between the “DESAT” terminals (Anode of the diode) and the IGBT’s collector terminals with the cathode of the diode. Additionally blanking capacitors filtering spikes ar ...
... As shown in Fig.2.2 high voltage diodes with low reverse-recovery charge and corresponding low reverse recovery time are connected between the “DESAT” terminals (Anode of the diode) and the IGBT’s collector terminals with the cathode of the diode. Additionally blanking capacitors filtering spikes ar ...
MAX8728 Low-Cost, Multiple-Output Power Supply for LCD Monitors/TVs General Description
... 13.2V and is optimized for LCD TV panel and LCD monitor applications running directly from 12V supplies. The step-up and step-down regulators feature internal power MOSFETs and high-frequency operation allowing the use of small inductors and capacitors, resulting in a compact solution. Both switchin ...
... 13.2V and is optimized for LCD TV panel and LCD monitor applications running directly from 12V supplies. The step-up and step-down regulators feature internal power MOSFETs and high-frequency operation allowing the use of small inductors and capacitors, resulting in a compact solution. Both switchin ...
Dynamic Electrothermal Simulation of Integrated Resistors at Device Level
... (9) is needed because of the adiabatic boundary condition. Note that (9) can still be applied for substrates with finite thickness using a multiple reflection technique: one has simply to adjust the Green’s function according to the image sources. The same holds for a squarely laterally limited subs ...
... (9) is needed because of the adiabatic boundary condition. Note that (9) can still be applied for substrates with finite thickness using a multiple reflection technique: one has simply to adjust the Green’s function according to the image sources. The same holds for a squarely laterally limited subs ...
ZXLD1350 30V 350mA LED DRIVER with AEC-Q100 Description
... 30V 350mA LED DRIVER with AEC-Q100 Device Description The device, in conjunction with the coil (L1) and current sense resistor (RS), forms a self-oscillating continuous-mode buck converter. Device operation (Refer to block diagram and Figure 1 - Operating waveforms) Operation can be best understood ...
... 30V 350mA LED DRIVER with AEC-Q100 Device Description The device, in conjunction with the coil (L1) and current sense resistor (RS), forms a self-oscillating continuous-mode buck converter. Device operation (Refer to block diagram and Figure 1 - Operating waveforms) Operation can be best understood ...
3-Pin Voltage Supervisor with Active-Low, Open
... During power-on, RESET asserts when the supply voltage (VDD) becomes greater than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT. An internal timer delays the return of the output to the inactive state (high) to e ...
... During power-on, RESET asserts when the supply voltage (VDD) becomes greater than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT. An internal timer delays the return of the output to the inactive state (high) to e ...
Aalborg Universitet Investigation of Flux-Linkage Profile Measurement Methods for Switched-Reluctance
... induced in the search coil. The search coil is open-circuited so in (1), i = 0 . The voltage to be integrated is equal to the terminal voltage. There is no need to measure the resistance. The instantaneous current in the excitation coil (phase winding) is measured, and its amplitude is varied. Diffe ...
... induced in the search coil. The search coil is open-circuited so in (1), i = 0 . The voltage to be integrated is equal to the terminal voltage. There is no need to measure the resistance. The instantaneous current in the excitation coil (phase winding) is measured, and its amplitude is varied. Diffe ...
MAX5037A VRM 9.0/VRM 9.1, Dual-Phase, Parallelable, Average-Current-Mode Controller General Description
... with a minimum number of external components. The MAX5037A utilizes a dual-phase, average-current-mode control that enables optimal use of low R DS(ON) MOSFETs, eliminating the need for external heatsinks even when delivering high output currents. Differential sensing enables accurate control of the ...
... with a minimum number of external components. The MAX5037A utilizes a dual-phase, average-current-mode control that enables optimal use of low R DS(ON) MOSFETs, eliminating the need for external heatsinks even when delivering high output currents. Differential sensing enables accurate control of the ...
Reducing the motor Derating and Torque Pulsation of Induction
... be opened. According to the basic rule, the maximum number of permitted switching states of the MC is reduced to 27.First 6 switching states provide a direct connection of each output line to a different input line producing a rotating voltage vector with same amplitude and same frequency of the inp ...
... be opened. According to the basic rule, the maximum number of permitted switching states of the MC is reduced to 27.First 6 switching states provide a direct connection of each output line to a different input line producing a rotating voltage vector with same amplitude and same frequency of the inp ...
Evaluates: MAX5906–MAX5909 MAX5908 Evaluation Kit General Description Features
... The EV kit uses a MAX5908 IC in a 16-pin QSOP package to control both sides of the circuit. The EV kit can be reconfigured for any input voltage between +1.0V to +13.2V. The MAX5908 IC controls the +5V side N-channel MOSFET (N1) and provides current regulation during startup. The current-limit thres ...
... The EV kit uses a MAX5908 IC in a 16-pin QSOP package to control both sides of the circuit. The EV kit can be reconfigured for any input voltage between +1.0V to +13.2V. The MAX5908 IC controls the +5V side N-channel MOSFET (N1) and provides current regulation during startup. The current-limit thres ...
2330 Level 2 Electrotechnical Technology
... However, approved City & Guilds centres and learners studying for City & Guilds qualifications may photocopy this document free of charge and/or include a locked PDF version of it on centre intranets on the following conditions: • centre staff may copy the material only for the purpose of teaching l ...
... However, approved City & Guilds centres and learners studying for City & Guilds qualifications may photocopy this document free of charge and/or include a locked PDF version of it on centre intranets on the following conditions: • centre staff may copy the material only for the purpose of teaching l ...
Unleashing the LM386
... characteristic can be made even sharper. An inductor of 1 mH will resonate with the 100 µF capacitor at about 500 Hz and is fine. The problem now is that the gain will drop so much at the higher frequencies that it gets below the value of 9 which is the stability limit for the LM386. To limit the at ...
... characteristic can be made even sharper. An inductor of 1 mH will resonate with the 100 µF capacitor at about 500 Hz and is fine. The problem now is that the gain will drop so much at the higher frequencies that it gets below the value of 9 which is the stability limit for the LM386. To limit the at ...
BQ24120 数据资料 dataSheet 下载
... Charge current-sense input. Battery current is sensed via the voltage drop developed on this pin by an external sense resistor in series with the battery pack. A 0.1µF capacitor to VSS is required. ...
... Charge current-sense input. Battery current is sensed via the voltage drop developed on this pin by an external sense resistor in series with the battery pack. A 0.1µF capacitor to VSS is required. ...
Evaluates: MAX17062 MAX17062 Evaluation Kit General Description Features
... The MAX17062 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that provides the voltages required for active-matrix, thin-film transistor (TFT), liquid-crystal displays (LCDs). The EV kit contains a pulse-width-modulated (PWM) step-up switching regulator, a positive single-s ...
... The MAX17062 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that provides the voltages required for active-matrix, thin-film transistor (TFT), liquid-crystal displays (LCDs). The EV kit contains a pulse-width-modulated (PWM) step-up switching regulator, a positive single-s ...
An Electrical Circuit Model for Magnetic Cores
... comers. As a result, these areas will saturate before the rest of the core, causing the flux to shift to a longer path as saturation is approached. Toriodal core shapes are relatively free of these effects. Adding a Large Air Gap: The cores depicted in Figures 4 -7 have little or no stored recoverab ...
... comers. As a result, these areas will saturate before the rest of the core, causing the flux to shift to a longer path as saturation is approached. Toriodal core shapes are relatively free of these effects. Adding a Large Air Gap: The cores depicted in Figures 4 -7 have little or no stored recoverab ...
Nodal Analysis
... Figure 6 The superposition principle states that the system response to all sources can be determined by summing the systems response to each source acting alone, with all other sources “zeroed.” This strategy only works for linear systems. Calculate the node voltages V1, V2, V3, by zeroing all but ...
... Figure 6 The superposition principle states that the system response to all sources can be determined by summing the systems response to each source acting alone, with all other sources “zeroed.” This strategy only works for linear systems. Calculate the node voltages V1, V2, V3, by zeroing all but ...
TPS65130 数据资料 dataSheet 下载
... currents in a 200-mA range in typical applications, depending on input voltage to output voltage ratio. With a total efficiency up to 85%, the device is ideal for portable battery-powered equipment. The input voltage range of 2.7 V to 5.5 V allows the TPS65130/1 to be directly powered from a Li-ion ...
... currents in a 200-mA range in typical applications, depending on input voltage to output voltage ratio. With a total efficiency up to 85%, the device is ideal for portable battery-powered equipment. The input voltage range of 2.7 V to 5.5 V allows the TPS65130/1 to be directly powered from a Li-ion ...
Current source
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.