MAX764/MAX765/MAX766 -5V/-12V/-15V or Adjustable, High-Efficiency, Low I DC-DC Inverters
... 1) They can operate with miniature (less than 5mm diameter) surface-mount inductors, because of their 300kHz switching frequency. 2) The current-limited PFM control scheme allows efficiencies exceeding 80% over a wide range of load currents. 3) Maximum quiescent supply current is only 120µA. Figures ...
... 1) They can operate with miniature (less than 5mm diameter) surface-mount inductors, because of their 300kHz switching frequency. 2) The current-limited PFM control scheme allows efficiencies exceeding 80% over a wide range of load currents. 3) Maximum quiescent supply current is only 120µA. Figures ...
Where Does Current Come From?
... Where Does Current Come From? • The free electrons in a conductor need to be replaced when they move through the conducting medium (the wire). • These electrons are replaced by electrons from a source of energy such as a battery. ...
... Where Does Current Come From? • The free electrons in a conductor need to be replaced when they move through the conducting medium (the wire). • These electrons are replaced by electrons from a source of energy such as a battery. ...
COEN6511 LECTURE 3
... The basic functionality of a 2-input NAND gate is given in the figure above Whenever input A is ‘0’ and for any value of B, transistor A is active and will conduct, pulling the output node high. Similarly, whenever input B is ‘0’ and irrespective of input A, transistor B will drive the output node h ...
... The basic functionality of a 2-input NAND gate is given in the figure above Whenever input A is ‘0’ and for any value of B, transistor A is active and will conduct, pulling the output node high. Similarly, whenever input B is ‘0’ and irrespective of input A, transistor B will drive the output node h ...
Chapter 19: Current, resistance, circuits What will we learn in this
... Ohm’s law: The potential difference V between the ends of a conductor is proportional to the current I trough the conductor; the proportionality factor is the resistance R. Note: Ohm’s law is only valid when V and I are proportional! This implies that R is a constant independent of V and I. Clearly, ...
... Ohm’s law: The potential difference V between the ends of a conductor is proportional to the current I trough the conductor; the proportionality factor is the resistance R. Note: Ohm’s law is only valid when V and I are proportional! This implies that R is a constant independent of V and I. Clearly, ...
Inventor - Hobbielektronika
... the shortest period ofthe operating cycle. FIG. 1b illustrates that this limitation can be overcome by adding a diode 14 through which the capacitor charges. Thus, the capacitor can have a smaller value than in FIG. 1a. However, the resistor still needs to be sized to discharge thisenergy during the ...
... the shortest period ofthe operating cycle. FIG. 1b illustrates that this limitation can be overcome by adding a diode 14 through which the capacitor charges. Thus, the capacitor can have a smaller value than in FIG. 1a. However, the resistor still needs to be sized to discharge thisenergy during the ...
LM5100/LM5101 High Voltage High Side and Low Side Gate Driver
... The bootstrap diode power loss is the sum of the forward bias power loss that occurs while charging the bootstrap capacitor and the reverse bias power loss that occurs during reverse recovery. Since each of these events happens once per cycle, the diode power loss is proportional to frequency. Large ...
... The bootstrap diode power loss is the sum of the forward bias power loss that occurs while charging the bootstrap capacitor and the reverse bias power loss that occurs during reverse recovery. Since each of these events happens once per cycle, the diode power loss is proportional to frequency. Large ...
Transistor Circuits
... This is two transistors connected together so that the current amplified by the first is amplified further by the second transistor. The overall current gain is equal to the two individual gains multiplied together: Darlington pair current gain, hFE = hFE1 × hFE2 (hFE1 and hFE2 are the gains of the ...
... This is two transistors connected together so that the current amplified by the first is amplified further by the second transistor. The overall current gain is equal to the two individual gains multiplied together: Darlington pair current gain, hFE = hFE1 × hFE2 (hFE1 and hFE2 are the gains of the ...
Ohmic and Non-Ohmic Devices
... resistor and ammeter in series. Add a voltmeter across the lamp. 2. Change the battery voltage and resistance as you did in circuit 1. 3. Label this circuit: Circuit 2 (Filament Lamp). 4. Record the current through and the voltage across the filament lamp for a variety of batteries, eg. 10V, 8V, 6V, ...
... resistor and ammeter in series. Add a voltmeter across the lamp. 2. Change the battery voltage and resistance as you did in circuit 1. 3. Label this circuit: Circuit 2 (Filament Lamp). 4. Record the current through and the voltage across the filament lamp for a variety of batteries, eg. 10V, 8V, 6V, ...
Series/Parallel worksheet 2
... resistor connected in series. 2. Calculate the total resistance for ten 120 ohm resistors in series. 3. A string of fifty 15 ohm Christmas tree lights are connected in series. One burns out, they all burn out. Calculate the total resistance. 4. Calculate the total resistance for two 180 ohm resistor ...
... resistor connected in series. 2. Calculate the total resistance for ten 120 ohm resistors in series. 3. A string of fifty 15 ohm Christmas tree lights are connected in series. One burns out, they all burn out. Calculate the total resistance. 4. Calculate the total resistance for two 180 ohm resistor ...
EE70 Review
... An electrical circuit consists of circuit elements such as voltage sources, resistances, inductances and capacitances that are connected in closed paths by conductors ...
... An electrical circuit consists of circuit elements such as voltage sources, resistances, inductances and capacitances that are connected in closed paths by conductors ...
EELE 354 Lab Assignment 3: Series and Parallel Resistors, Ohm`s
... Many electric loads such as electric heaters and light bulbs can be thought of as resistors under normal operating conditions. In power circuitry, resistors themselves can be used to regulate the power delivered to loads. For example, the power delivered to an electric motor can be adjusted using a ...
... Many electric loads such as electric heaters and light bulbs can be thought of as resistors under normal operating conditions. In power circuitry, resistors themselves can be used to regulate the power delivered to loads. For example, the power delivered to an electric motor can be adjusted using a ...
Document
... A current meter may be used to measure the leakage current of electrolytic capacitors. The leakage current depends ...
... A current meter may be used to measure the leakage current of electrolytic capacitors. The leakage current depends ...
2SD2696
... 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 ...
EMI2121 数据资料DataSheet下载
... the IEC61000−4−2 waveform. Since the IEC61000−4−2 was written as a pass/fail spec for larger systems such as cell phones or laptop computers it is not clearly defined in the spec how to specify a clamping voltage at the device level. ON Semiconductor has developed a way to examine the entire voltage ...
... the IEC61000−4−2 waveform. Since the IEC61000−4−2 was written as a pass/fail spec for larger systems such as cell phones or laptop computers it is not clearly defined in the spec how to specify a clamping voltage at the device level. ON Semiconductor has developed a way to examine the entire voltage ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.