TPS54900 数据资料 dataSheet 下载
... reference system/voltage divider and multiplexer The reference system consists of a band-gap circuit, four digital to analog converter outputs (DACs), and smoothing filters. The reference system provides independent set-point voltages to the PWM control loops of each channel, and are programmed via ...
... reference system/voltage divider and multiplexer The reference system consists of a band-gap circuit, four digital to analog converter outputs (DACs), and smoothing filters. The reference system provides independent set-point voltages to the PWM control loops of each channel, and are programmed via ...
Data Sheet - Profusion plc
... Supply decoupling for the high current HalfHalf-bridge supply pins. These components must be located as close close to the output MOSFETs as possible to minimize output ringing which causes power supply overshoot. By reducing overshoot, these capacitors maximize both the RARA-2500 and output MOSFET ...
... Supply decoupling for the high current HalfHalf-bridge supply pins. These components must be located as close close to the output MOSFETs as possible to minimize output ringing which causes power supply overshoot. By reducing overshoot, these capacitors maximize both the RARA-2500 and output MOSFET ...
Comparative Study of Power Factor Correction Converters Senior Member, IEEE
... approaches have been proposed to develop single-phase online UPS systems. A single switch boost converter performing ac-dc conversion during normal operation or dc-dc conversion during battery powered operation is introduced in [6] and shown in Fig.3(b), to replace the diode rectifier and the high v ...
... approaches have been proposed to develop single-phase online UPS systems. A single switch boost converter performing ac-dc conversion during normal operation or dc-dc conversion during battery powered operation is introduced in [6] and shown in Fig.3(b), to replace the diode rectifier and the high v ...
LM138/LM338 5-Amp Adjustable Regulators
... An input bypass capacitor is recommended. A 0.1 μF disc or 1 μF solid tantalum on the input is suitable input bypassing for almost all applications. The device is more sensitive to the absence of input bypassiing when adjustment or output capacitors are used but the above values will eliminate the p ...
... An input bypass capacitor is recommended. A 0.1 μF disc or 1 μF solid tantalum on the input is suitable input bypassing for almost all applications. The device is more sensitive to the absence of input bypassiing when adjustment or output capacitors are used but the above values will eliminate the p ...
LM138/LM338 5-Amp Adjustable Regulators
... An input bypass capacitor is recommended. A 0.1 μF disc or 1 μF solid tantalum on the input is suitable input bypassing for almost all applications. The device is more sensitive to the absence of input bypassiing when adjustment or output capacitors are used but the above values will eliminate the p ...
... An input bypass capacitor is recommended. A 0.1 μF disc or 1 μF solid tantalum on the input is suitable input bypassing for almost all applications. The device is more sensitive to the absence of input bypassiing when adjustment or output capacitors are used but the above values will eliminate the p ...
IGBT (Insulated Gate Bipolar Transistor) 1 Differences Between
... IGBTs are mainly used as switches, e.g. in chopper and frequency converter applications. In these applications the adaptation of a (freewheeling) diode is essential, because after switching off the IGBT the current is driven on by the load, which is inductive in most cases. By attaching suitable dio ...
... IGBTs are mainly used as switches, e.g. in chopper and frequency converter applications. In these applications the adaptation of a (freewheeling) diode is essential, because after switching off the IGBT the current is driven on by the load, which is inductive in most cases. By attaching suitable dio ...
Studies on metal–semiconductor contacts with ZrN as metal layer
... Metal-semiconductor (M-S) contacts have been a subject of interest for many years. This is due to their immense use in electronics circuits like advanced VLSI/ULSI technologies. Metal-semiconductor field effect transistor technology uses the gate structure as the drain/source implantation mask and t ...
... Metal-semiconductor (M-S) contacts have been a subject of interest for many years. This is due to their immense use in electronics circuits like advanced VLSI/ULSI technologies. Metal-semiconductor field effect transistor technology uses the gate structure as the drain/source implantation mask and t ...
AN45 - Measurement and Control Circuit Collection
... Low cost makes transistors potentially attractive as temperature sensors. Almost all transistor-sensed thermometer circuits utilize the base-emitter diode voltage shift with temperature as the sensing mechanism. Unfortunately, the absolute diode voltage is unpredictable, necessitating circuit calibr ...
... Low cost makes transistors potentially attractive as temperature sensors. Almost all transistor-sensed thermometer circuits utilize the base-emitter diode voltage shift with temperature as the sensing mechanism. Unfortunately, the absolute diode voltage is unpredictable, necessitating circuit calibr ...
Direct Current Measurement and Ohm`s Law
... When preparing to draw a graph the first thing to do is pick a scale to use on your graph paper. Unless you are merely making a rough graph to visualize the trend of data, the scales should be picked so that the graph fills between a half and a whole sheet of paper. A graph that is too small is usel ...
... When preparing to draw a graph the first thing to do is pick a scale to use on your graph paper. Unless you are merely making a rough graph to visualize the trend of data, the scales should be picked so that the graph fills between a half and a whole sheet of paper. A graph that is too small is usel ...
MCOTS-C-28-24-HZ-NM - SynQor, Inc.
... Input Under-Voltage Lockout: The converter is designed to turn off when the input voltage is too low, helping to avoid an input system instability problem, which is described in more detail in the application note titled “Input System Instability” on the SynQor website. The lockout circuitry is a co ...
... Input Under-Voltage Lockout: The converter is designed to turn off when the input voltage is too low, helping to avoid an input system instability problem, which is described in more detail in the application note titled “Input System Instability” on the SynQor website. The lockout circuitry is a co ...
lab sheet - Faculty of Engineering
... Fig-2 shows schematically the basic operation of a SCR. The anode is connected through a series-limiting resistor RL to a positive voltage. The cathode is connected to ground via switch S2 and the gate is connected to switch S1, which is connected to ground. Under this configuration as in Fig-2(a), ...
... Fig-2 shows schematically the basic operation of a SCR. The anode is connected through a series-limiting resistor RL to a positive voltage. The cathode is connected to ground via switch S2 and the gate is connected to switch S1, which is connected to ground. Under this configuration as in Fig-2(a), ...
LP3997 Micropower 250mA CMOS LDO Regulator with Error Flag
... X7R is recommended. This capacitor is connected directly to high impedance node in the band gap reference circuit. Any significant loading on this node will cause a change in the regulated output voltage. For this reason, DC leakage current from this pin must be kept as low as possible for best outp ...
... X7R is recommended. This capacitor is connected directly to high impedance node in the band gap reference circuit. Any significant loading on this node will cause a change in the regulated output voltage. For this reason, DC leakage current from this pin must be kept as low as possible for best outp ...
F. Radiometers
... Integration greatly reduces the receiver output fluctuations. In the time interval Ü there are N = 2Á·RF Ü independent samples of the total noise power Tsys , each of which has an rms ...
... Integration greatly reduces the receiver output fluctuations. In the time interval Ü there are N = 2Á·RF Ü independent samples of the total noise power Tsys , each of which has an rms ...
Evaluates: MAX1960/MAX1961/MAX1962 MAX1960 Evaluation Kit General Description Features
... The MAX1960 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the MAX1960 family of PWM synchronous step-down controllers. There are two circuits on the board. The first has the MAX1960 installed but can also be used to evaluate the MAX1961. This circ ...
... The MAX1960 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the MAX1960 family of PWM synchronous step-down controllers. There are two circuits on the board. The first has the MAX1960 installed but can also be used to evaluate the MAX1961. This circ ...
MAX1522/MAX1523/MAX1524 Simple SOT23 Boost Controllers General Description ____________________________Features
... A switching regulator is operating in continuous conduction mode (CCM) when the inductor current is not allowed to decay to zero. This is accomplished by selecting an inductor value large enough that the inductor ripple current becomes less than one half of the input current. The advantage of this m ...
... A switching regulator is operating in continuous conduction mode (CCM) when the inductor current is not allowed to decay to zero. This is accomplished by selecting an inductor value large enough that the inductor ripple current becomes less than one half of the input current. The advantage of this m ...
A New Method Voltage and Frequency Regulation of Self
... when feeding an important inductive load, represents the main disadvantage of the SEIG and can be referred to the under excitation of the machine[21]. In fact, the decrease of the power factor is the origin of the rise of the reactive power requirements which demands an increasing of the required ex ...
... when feeding an important inductive load, represents the main disadvantage of the SEIG and can be referred to the under excitation of the machine[21]. In fact, the decrease of the power factor is the origin of the rise of the reactive power requirements which demands an increasing of the required ex ...
... voltage sense point and the true power input of the controller. This arrangement avoids the voltage drop problems that is prevalent in systems that have their power input come through the Alt switch, Field circuit breaker, and Over-Voltage (OV) Relay. In this system the primary function of the OV Se ...
Voltage regulator
A voltage regulator is designed to automatically maintain a constant voltage level. A voltage regulator may be a simple ""feed-forward"" design or may include negative feedback control loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. In an electric power distribution system, voltage regulators may be installed at a substation or along distribution lines so that all customers receive steady voltage independent of how much power is drawn from the line.