Components in series and parallel
... reciprocal to get the value of Rtot. It is unusual (at A-level) for questions to involve more than two resistors in parallel so it is worth pointing out that the parallel formula for two resistors can be rearranged to give: Rtot = R1 R2 / (R1+R2) or ‘product over sum’. This can save the faint-hearte ...
... reciprocal to get the value of Rtot. It is unusual (at A-level) for questions to involve more than two resistors in parallel so it is worth pointing out that the parallel formula for two resistors can be rearranged to give: Rtot = R1 R2 / (R1+R2) or ‘product over sum’. This can save the faint-hearte ...
Linear Four-Quadrant Multiplier
... side of the multiplier exhibits a second order nonlinearity whereas the “X” side exhibits a simple nonlinearity. By making the RY resistor approximately twice the value of the RX resistor, the linearity on both the “X” and “Y” sides are made equal. The selection of the RX and RY resistor values is d ...
... side of the multiplier exhibits a second order nonlinearity whereas the “X” side exhibits a simple nonlinearity. By making the RY resistor approximately twice the value of the RX resistor, the linearity on both the “X” and “Y” sides are made equal. The selection of the RX and RY resistor values is d ...
BQ24450 数据资料 dataSheet 下载
... The IC can support a wide range of battery capacities and charging currents, limited only by the selection of the external pass transistor. The versatile driver for the external pass transistor supports both NPN and PNP types and provides at least 25mA of base drive. In addition to the voltage- and ...
... The IC can support a wide range of battery capacities and charging currents, limited only by the selection of the external pass transistor. The versatile driver for the external pass transistor supports both NPN and PNP types and provides at least 25mA of base drive. In addition to the voltage- and ...
Realization of 476 MHz pulse power cavity amplifier using
... configured in grounded grid mode and is biased to operate in class AB1 mode. Output tuning & matching network takes the form of cavity resonator and that input tuning & matching network is realised with suspended striplines. The amplifier structure, consisting of output cavity, stripline based input ...
... configured in grounded grid mode and is biased to operate in class AB1 mode. Output tuning & matching network takes the form of cavity resonator and that input tuning & matching network is realised with suspended striplines. The amplifier structure, consisting of output cavity, stripline based input ...
SSRMAN-1P-CL S U M
... Provides true linear power output phase angle control with current limit Small (1.6x1.8”) module mounts on the input terminals of an inexpensive SSR Command input accepts 4-20mA, 0-20mA, 0-10V, 2-10V, 0-5V, 1-5V, Pot, PWM Adjustable Current or Voltage Limit Configurable line voltage compensation inc ...
... Provides true linear power output phase angle control with current limit Small (1.6x1.8”) module mounts on the input terminals of an inexpensive SSR Command input accepts 4-20mA, 0-20mA, 0-10V, 2-10V, 0-5V, 1-5V, Pot, PWM Adjustable Current or Voltage Limit Configurable line voltage compensation inc ...
OPAx348-Q1 1-MHz 45-μA CMOS Rail-to-Rail
... The OPAx348-Q1 family of devices is a low-power, rail-to-rail input and output operational amplifier. These devices operate from 1.8 V to 5.5 V, are unity-gain stable, and are suitable for a wide range of general-purpose applications. The class AB output stage is capable of driving ≤ 10-kΩ loads con ...
... The OPAx348-Q1 family of devices is a low-power, rail-to-rail input and output operational amplifier. These devices operate from 1.8 V to 5.5 V, are unity-gain stable, and are suitable for a wide range of general-purpose applications. The class AB output stage is capable of driving ≤ 10-kΩ loads con ...
Circuits make electric current useful.
... A series circuit uses a minimal amount of wire. However, a disadvantage of a series circuit is that all of the elements must be in working order for the circuit to function. If one of the light bulbs burns out, the circuit will be broken and the other bulb will be dark, too. Series circuits have ano ...
... A series circuit uses a minimal amount of wire. However, a disadvantage of a series circuit is that all of the elements must be in working order for the circuit to function. If one of the light bulbs burns out, the circuit will be broken and the other bulb will be dark, too. Series circuits have ano ...
Tamura Open Loop Hall Effect Current Sensors
... The L18P series open loop hall effect current sensor is available in 10 rated currents ranging from 3A to 60A & PSU options of +5VDC, +12VDC and ±15VDC. The features include single and dual power supply operation , good accuracy (~1%) , and fast response time (≤ 5ų sec). The L18P series is PCB mount ...
... The L18P series open loop hall effect current sensor is available in 10 rated currents ranging from 3A to 60A & PSU options of +5VDC, +12VDC and ±15VDC. The features include single and dual power supply operation , good accuracy (~1%) , and fast response time (≤ 5ų sec). The L18P series is PCB mount ...
BD9862MUV
... the time of PFM mode, the switching loss is reduced, so high efficiency is realized even in light load conditions. Moreover, it is capable of operating at the maximum switching frequency of 700KHz because of a built-in high voltage resistant, high-speed FET driver. In addition, it is equipped with a ...
... the time of PFM mode, the switching loss is reduced, so high efficiency is realized even in light load conditions. Moreover, it is capable of operating at the maximum switching frequency of 700KHz because of a built-in high voltage resistant, high-speed FET driver. In addition, it is equipped with a ...
Chapter 1 (Part 3) - Introduction to Basic Filters
... Band Stop Filter ( Notch) Reject all frequencies within a band of frequencies and passes all other frequencies outside the band. ...
... Band Stop Filter ( Notch) Reject all frequencies within a band of frequencies and passes all other frequencies outside the band. ...
ADA4311-1 数据手册DataSheet 下载
... should be located no more than ⅛-inch away from each of the power supply pins. A large, usually tantalum, 10 μF capacitor is required to provide good decoupling for lower frequency signals and to supply current for fast, large signal changes at the ADA4311-1 outputs. Bypassing capacitors should be l ...
... should be located no more than ⅛-inch away from each of the power supply pins. A large, usually tantalum, 10 μF capacitor is required to provide good decoupling for lower frequency signals and to supply current for fast, large signal changes at the ADA4311-1 outputs. Bypassing capacitors should be l ...
Level 1 Physics, 2006
... current now flows through the cables, producing magnetic fields in the space near the cables. (d) On the diagram below draw the shape and the direction of the magnetic fields produced by the power cables. Use arrows to show the direction of the magnetic field. current to the ...
... current now flows through the cables, producing magnetic fields in the space near the cables. (d) On the diagram below draw the shape and the direction of the magnetic fields produced by the power cables. Use arrows to show the direction of the magnetic field. current to the ...
CN3083 Li-Ion battery charger data sheet
... The charge cycle begins when the voltage at the VIN pin rises above the UVLO level, a current set resistor is connected from the ISET pin to ground. The CH pin outputs a logic low to indicate that the charge cycle is ongoing. At the beginning of the charge cycle, if the voltage at FB pin is below 3V ...
... The charge cycle begins when the voltage at the VIN pin rises above the UVLO level, a current set resistor is connected from the ISET pin to ground. The CH pin outputs a logic low to indicate that the charge cycle is ongoing. At the beginning of the charge cycle, if the voltage at FB pin is below 3V ...
SiPM_Signal_Shaping_Oct28_2009
... • Presented data showed about 40% recovery in the first 100ns, after which a recovery rate was about 13% / decade – I’m not sure what overvoltage was used (my speculation is about 1-1.5V) – The point is that with increased overvoltage the fraction of the charge, available in the first 10-100ns shoul ...
... • Presented data showed about 40% recovery in the first 100ns, after which a recovery rate was about 13% / decade – I’m not sure what overvoltage was used (my speculation is about 1-1.5V) – The point is that with increased overvoltage the fraction of the charge, available in the first 10-100ns shoul ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.