Introduction to Switched-Mode Power Supply (SMPS) circuits
... [Hint: VA ratng for a single phase transformer = 2.22 f BmaxAC AW δ KW , where f is supply frequency, Bmax is the peak flux density, AC : core area, AW : window area, δ : current density in copper and KW is the window utilization factor.] Answer: Volume (size) of Low frequency transformer will be 40 ...
... [Hint: VA ratng for a single phase transformer = 2.22 f BmaxAC AW δ KW , where f is supply frequency, Bmax is the peak flux density, AC : core area, AW : window area, δ : current density in copper and KW is the window utilization factor.] Answer: Volume (size) of Low frequency transformer will be 40 ...
BD6964FVM
... Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect ...
... Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect ...
Identifying Worst-Case Test Vectors for Delay FPGA
... enhanced low dose rate effect (ELDRS), neutron displacement damage and single event effects (SEE, SET and SEB). 2.1 Problems caused by radiation Semiconductor components operation mostly depends on the amount of charged particles and their motion, which makes them very sensitive to radiation as the ...
... enhanced low dose rate effect (ELDRS), neutron displacement damage and single event effects (SEE, SET and SEB). 2.1 Problems caused by radiation Semiconductor components operation mostly depends on the amount of charged particles and their motion, which makes them very sensitive to radiation as the ...
lecture 080 – latchup and esd
... An ESD event typically creates very high values of current (1-10A) for very short periods of time (150 ns) with very rapid rise times (1ns). Therefore, components experience extremely high values of current with very little power dissipation or thermal effects. Resistors – become nonlinear at high c ...
... An ESD event typically creates very high values of current (1-10A) for very short periods of time (150 ns) with very rapid rise times (1ns). Therefore, components experience extremely high values of current with very little power dissipation or thermal effects. Resistors – become nonlinear at high c ...
A Comparative Study of Switching Loss in IGBT and
... IGBT has a MOS gate input structure, with a simple gate control circuit design and is capable of fast switching speed. Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Beca ...
... IGBT has a MOS gate input structure, with a simple gate control circuit design and is capable of fast switching speed. Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Beca ...
NCP1027 - High-Voltage Switcher for Medium Power
... the current injected in this clamp exceeds a level of 6.0 mA (minimum), the controller immediately stops switching and waits a full timer period before attempting to restart. If the default is gone, the controller resumes operation. If the default is still there, e.g. a broken optocoupler, the contr ...
... the current injected in this clamp exceeds a level of 6.0 mA (minimum), the controller immediately stops switching and waits a full timer period before attempting to restart. If the default is gone, the controller resumes operation. If the default is still there, e.g. a broken optocoupler, the contr ...
AL8805 Description Pin Assignments
... L1, the LEDs and the schottky diode D1, and back to the supply rail, but it decays, with the rate of decay determined by the forward voltage drop of the LEDs and the schottky diode. This decaying current produces a falling voltage at R1, which is sensed by the AL8805. A voltage proportional to the s ...
... L1, the LEDs and the schottky diode D1, and back to the supply rail, but it decays, with the rate of decay determined by the forward voltage drop of the LEDs and the schottky diode. This decaying current produces a falling voltage at R1, which is sensed by the AL8805. A voltage proportional to the s ...
LM3489/LM3489Q Hysteretic PFET Buck Controller with Enable Pin
... device is intended to be functional, but device parameter specifications may not be ensured. For specifications and test conditions, see the Electrical Characteristics. This pin is internally pulled high and clamped at 8V typical. The absolute maximum and operating maximum rating specifies the input ...
... device is intended to be functional, but device parameter specifications may not be ensured. For specifications and test conditions, see the Electrical Characteristics. This pin is internally pulled high and clamped at 8V typical. The absolute maximum and operating maximum rating specifies the input ...
MAX1889 Triple-Output TFT LCD Power Supply with Fault Protection General Description
... crystal displays (TFT LCDs). It combines a high-performance step-up regulator with two linear-regulator controllers and multiple levels of protection circuitry for a complete power-supply system. The main DC-DC converter is a high-frequency (500kHz/1MHz), current-mode step-up regulator with an integ ...
... crystal displays (TFT LCDs). It combines a high-performance step-up regulator with two linear-regulator controllers and multiple levels of protection circuitry for a complete power-supply system. The main DC-DC converter is a high-frequency (500kHz/1MHz), current-mode step-up regulator with an integ ...
RB558VA150
... The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from RO ...
... The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from RO ...
FL7930C Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting
... the OVP and disable functions. The output current of the amplifier changes according to the voltage difference of the inverting and non-inverting input of the amplifier. To cancel down the line input voltage effect on power factor correction, the effective control response of the PFC block should be ...
... the OVP and disable functions. The output current of the amplifier changes according to the voltage difference of the inverting and non-inverting input of the amplifier. To cancel down the line input voltage effect on power factor correction, the effective control response of the PFC block should be ...
MAX4906/MAX4606F/MAX4907/MAX4907F High-/Full-Speed USB 2.0 Switches General Description Features
... The MAX4906/MAX4906F feature two single-pole/double-throw (SPDT) switches, and the MAX4907/ MAX4907F feature two single-pole/single-throw switches (SPST). The MAX4907/MAX4907F have a low 7Ω (max) on-resistance and 7pF (max) on-capacitance. These devices are fully specified to operate from a single + ...
... The MAX4906/MAX4906F feature two single-pole/double-throw (SPDT) switches, and the MAX4907/ MAX4907F feature two single-pole/single-throw switches (SPST). The MAX4907/MAX4907F have a low 7Ω (max) on-resistance and 7pF (max) on-capacitance. These devices are fully specified to operate from a single + ...
DC and AC Motor Drives
... microcomputers along with fast-switching power converters. • The ac motors have a number of advantages; they are lightweight (20 to 40% lighter than equivalent dc motors), are inexpensive, and have low maintenance compared with dc motors. • They require control of frequency, voltage, and current for ...
... microcomputers along with fast-switching power converters. • The ac motors have a number of advantages; they are lightweight (20 to 40% lighter than equivalent dc motors), are inexpensive, and have low maintenance compared with dc motors. • They require control of frequency, voltage, and current for ...
A 1.2- mu m CMOS current-controlled oscillator - Solid
... able nor practical. In fact, to be compatible with modern processes, circuits must use lower, not higher, voltages. Efforts to reduce jitter thus must concentrate on reducing circuit noise, and maximizing the capacitor voltage amplitude for a given power supply voltage. Bipolar controlled relaxation ...
... able nor practical. In fact, to be compatible with modern processes, circuits must use lower, not higher, voltages. Efforts to reduce jitter thus must concentrate on reducing circuit noise, and maximizing the capacitor voltage amplitude for a given power supply voltage. Bipolar controlled relaxation ...
www.BDTIC.com/TI Live Insertion SDYA012 October 1996
... For many years, diverse functions and processes have been monitored and controlled successfully by electronic systems. The advantages of electronic controls in such cases (compared with manual or mechanical controls) are lower operating costs and the improved reliability that electronics now provide ...
... For many years, diverse functions and processes have been monitored and controlled successfully by electronic systems. The advantages of electronic controls in such cases (compared with manual or mechanical controls) are lower operating costs and the improved reliability that electronics now provide ...
i DEVELOPMENT OF A POWER FACTOR CORRECTION BUCK
... integral to modern electronic [1]. Step down converter transfer small packets of energy using a switch, diode, an inductor and several applications. Through substantially larger and noisier than their linear regulator counterparts, buck converters offer higher effiency in most cases. The general, DC ...
... integral to modern electronic [1]. Step down converter transfer small packets of energy using a switch, diode, an inductor and several applications. Through substantially larger and noisier than their linear regulator counterparts, buck converters offer higher effiency in most cases. The general, DC ...
TPS61060 数据资料 dataSheet 下载
... The TPS61060/61/62 is a high-frequency, synchronous boost converter with constant current output to drive up to 5 white LEDs. For maximum safety, the device features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz f ...
... The TPS61060/61/62 is a high-frequency, synchronous boost converter with constant current output to drive up to 5 white LEDs. For maximum safety, the device features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz f ...
Transistor
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A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. Following its development in 1947 by American physicists John Bardeen, Walter Brattain, and William Shockley, the transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things. The transistor is on the list of IEEE milestones in electronics, and the inventors were jointly awarded the 1956 Nobel Prize in Physics for their achievement.