LM2575 数据资料 dataSheet 下载
... Proper inductor selection is key to the performance-switching power-supply designs. One important factor to consider is whether the regulator will be used in continuous (inductor current flows continuously and never drops to zero) or in discontinuous mode (inductor current goes to zero during the no ...
... Proper inductor selection is key to the performance-switching power-supply designs. One important factor to consider is whether the regulator will be used in continuous (inductor current flows continuously and never drops to zero) or in discontinuous mode (inductor current goes to zero during the no ...
Stresa, Italy, 26-28 April 2006
... A variable capacitor Cv formed by an in-plane gapclosing comb structure is the main component in the energy converter [3, 6], as shown in Fig. 2. Fig. 3 shows a schematic circuit that can be used to extract the converted energy. The variable capacitor Cv is charged by an external voltage source Vin ...
... A variable capacitor Cv formed by an in-plane gapclosing comb structure is the main component in the energy converter [3, 6], as shown in Fig. 2. Fig. 3 shows a schematic circuit that can be used to extract the converted energy. The variable capacitor Cv is charged by an external voltage source Vin ...
AR70 Integral
... 5 Positioning – Positioning is subject to interior and installation requirements. Placement guides are available for a limited number of products. Guides can also be discussed with the design department. 6 Lamps - With a John Cullen Design the lamp beam angles and lens specification are provided on ...
... 5 Positioning – Positioning is subject to interior and installation requirements. Placement guides are available for a limited number of products. Guides can also be discussed with the design department. 6 Lamps - With a John Cullen Design the lamp beam angles and lens specification are provided on ...
Hybrid switches for low-voltage DC grids
... expected there is a vital change compared to the resistive behaviour with regard to the disconnection. After disruption of the current, external circuitry induces an attenuated voltage oscillation. Overvoltage must not exceed the value of the reverse peak voltage and/or peak blocking voltage. Theref ...
... expected there is a vital change compared to the resistive behaviour with regard to the disconnection. After disruption of the current, external circuitry induces an attenuated voltage oscillation. Overvoltage must not exceed the value of the reverse peak voltage and/or peak blocking voltage. Theref ...
Modelling, analysis and verification of a resonant
... reduced dependence on other loads in the relay system. The block diagram of an electromagnetic contactor and its driving converter is shown on figure 1. Considering the converter – various circuit solutions exists, where the most frequently transformerless topologies such as buck or buck-boost are u ...
... reduced dependence on other loads in the relay system. The block diagram of an electromagnetic contactor and its driving converter is shown on figure 1. Considering the converter – various circuit solutions exists, where the most frequently transformerless topologies such as buck or buck-boost are u ...
TPEM Specification Sheet - Cummins Crosspoint, LLC
... The Prototype Test Support (PTS) program verifies the performance integrity of the generator set design. Cummins Power Generation products bearing the PTS symbol meet the prototype test requirements of NFPA 110 for Level 1 systems. ...
... The Prototype Test Support (PTS) program verifies the performance integrity of the generator set design. Cummins Power Generation products bearing the PTS symbol meet the prototype test requirements of NFPA 110 for Level 1 systems. ...
DOC - Rachel
... - Types of voltage regulator e.g. diac, triac, thyristor, series voltage regulator, transistorized electronic voltage regulator Functions of each block ...
... - Types of voltage regulator e.g. diac, triac, thyristor, series voltage regulator, transistorized electronic voltage regulator Functions of each block ...
Slide 1 - Helios
... We say the voltage lags the current by 90 degrees or ¼ cycle The equation for current is then iC = IC sin (wdt + p/2) ...
... We say the voltage lags the current by 90 degrees or ¼ cycle The equation for current is then iC = IC sin (wdt + p/2) ...
EUP2520 Preliminary Dual Output Step-Up Converter for White LED Backlighting and OLED Display
... The EUP2520 utilizes a gated oscillator control scheme for the sub-display. There is a hysteresis window to regulate the output voltage. The oscillator frequency is the same as the frequency in PWM control. The Duty cycle of the oscillator signal is always set to maximum. During the first part of ea ...
... The EUP2520 utilizes a gated oscillator control scheme for the sub-display. There is a hysteresis window to regulate the output voltage. The oscillator frequency is the same as the frequency in PWM control. The Duty cycle of the oscillator signal is always set to maximum. During the first part of ea ...
Final Report - Edge - Rochester Institute of Technology
... individual solar cells is frequently changing independent of other cells connected in a series/parallel array. To help compensate, a max power point tracking (MPPT) module is used to keep the output of the array close to that of the correct voltage and current which will yield the maximum power. The ...
... individual solar cells is frequently changing independent of other cells connected in a series/parallel array. To help compensate, a max power point tracking (MPPT) module is used to keep the output of the array close to that of the correct voltage and current which will yield the maximum power. The ...
clipper circuits
... of a positive shunt clipper circuit. During the positive half cycle, the diode ‘D’ is forward biased and the diode acts as a closed switch. This causes the diode to conduct heavily. This causes the voltage drop across the diode or across the load resistance RL to be zero. Thus output voltage during ...
... of a positive shunt clipper circuit. During the positive half cycle, the diode ‘D’ is forward biased and the diode acts as a closed switch. This causes the diode to conduct heavily. This causes the voltage drop across the diode or across the load resistance RL to be zero. Thus output voltage during ...
a voltage-controlled dstatcom for power-quality
... (PCC), has been utilized to mitigate both types of PQ problems. When operating in current control mode (CCM), it injects reactive and harmonic components of load currents to make source currents balanced, sinusoidal, and in phase with the PCC voltages. In voltage-control mode (VCM), the DSTATCOM reg ...
... (PCC), has been utilized to mitigate both types of PQ problems. When operating in current control mode (CCM), it injects reactive and harmonic components of load currents to make source currents balanced, sinusoidal, and in phase with the PCC voltages. In voltage-control mode (VCM), the DSTATCOM reg ...
Current-Fed Multi-Resonant DC
... characteristics of the converter (see APPENDICES I & II for definition of parameters). A fundamental parameter of the CFMRC is the conduction period (8, Fig. 3) which is presented in Fig. 4 in normalized form (degrees, referred to the switching frequency). A large (8) will reduce the current stresse ...
... characteristics of the converter (see APPENDICES I & II for definition of parameters). A fundamental parameter of the CFMRC is the conduction period (8, Fig. 3) which is presented in Fig. 4 in normalized form (degrees, referred to the switching frequency). A large (8) will reduce the current stresse ...
Transmission of electricity 2
... • Select and use the equation Power = Voltage x Current (P=V x I) ...
... • Select and use the equation Power = Voltage x Current (P=V x I) ...
Heathkit TX-1 - Orange County (California) Amateur Radio Club
... heavy duty power supplies. The low voltage transformer provides 6.3 VAC heater voltage for all the tubes except the VFO and rectifiers. A second filament winding provides 3.5 amps at 6.3 VAC at the rear accessory socket. Two 5 VAC windings provide filament voltage for the low and high voltage rectif ...
... heavy duty power supplies. The low voltage transformer provides 6.3 VAC heater voltage for all the tubes except the VFO and rectifiers. A second filament winding provides 3.5 amps at 6.3 VAC at the rear accessory socket. Two 5 VAC windings provide filament voltage for the low and high voltage rectif ...
Single bus buffer (3-state)
... Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implicatio ...
... Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implicatio ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.