Project: Electronic Cricket
... capacitor voltage and when it reaches 2/3Vcc (threshold), the output becomes low and the discharge pin is connected to 0V. • The capacitor discharges with current flowing through RB into the discharge pin. When the voltage falls to 1/3Vcc (trigger) the output becomes high again and the discharge pin ...
... capacitor voltage and when it reaches 2/3Vcc (threshold), the output becomes low and the discharge pin is connected to 0V. • The capacitor discharges with current flowing through RB into the discharge pin. When the voltage falls to 1/3Vcc (trigger) the output becomes high again and the discharge pin ...
Lab #1: Ohm’s Law (and not Ohm’s Law)
... Will use to study the Ebers-Moll model of the transistor I C = I S (eVBE /VT - 1) I B = I C / hFE VT , I S .h FE are properties of the transistor, with VT » 25mV I S is the saturation current h FE » 20 - 1000 We will plot ln(IC ) vs VBE for 2 different types of transistors ...
... Will use to study the Ebers-Moll model of the transistor I C = I S (eVBE /VT - 1) I B = I C / hFE VT , I S .h FE are properties of the transistor, with VT » 25mV I S is the saturation current h FE » 20 - 1000 We will plot ln(IC ) vs VBE for 2 different types of transistors ...
2HPSL(Dual Channel 101/64 Segment LED Bargraph Indicator with
... Zero and span adjustments are provided for infield adjustments of both digital and bar graph display, for field calibration of indicator whenever required. Indicators can be supplied with retransmission output of 4 – 20 mA, which can be used for remote telemetry or recording purpose All signal input ...
... Zero and span adjustments are provided for infield adjustments of both digital and bar graph display, for field calibration of indicator whenever required. Indicators can be supplied with retransmission output of 4 – 20 mA, which can be used for remote telemetry or recording purpose All signal input ...
User Manual - Quasar Electronic Kits
... you. But it will also collect any other oscillating magnetic fields which happen to be floating around in the air. For example, low & high frequency noise from your TV set or computer monitor or the characteristic mains humm from power lines. High frequency filters have been built into the circuit t ...
... you. But it will also collect any other oscillating magnetic fields which happen to be floating around in the air. For example, low & high frequency noise from your TV set or computer monitor or the characteristic mains humm from power lines. High frequency filters have been built into the circuit t ...
5th Harmonic resonance
... when the current and voltage yet not work when powered by are “in-phase.” Inductive motor the generator? The difference is loads cause the current to lag, the source impedance. The low thereby lowering the DPF. This impedance of the utility means usually results in a penalty it can absorb harmonic c ...
... when the current and voltage yet not work when powered by are “in-phase.” Inductive motor the generator? The difference is loads cause the current to lag, the source impedance. The low thereby lowering the DPF. This impedance of the utility means usually results in a penalty it can absorb harmonic c ...
unit 3 PPT
... -Square wave - The signal goes directly from high to low voltage. -Sine wave - The signal curves like a sinusoid from high to low voltage. -Triangle wave - The signal goes from high to low voltage at a ...
... -Square wave - The signal goes directly from high to low voltage. -Sine wave - The signal curves like a sinusoid from high to low voltage. -Triangle wave - The signal goes from high to low voltage at a ...
EE 1000 Introduction to Electrical Engineering
... A power supply is a device that supplies a constant voltage or a constant current to a circuit. Most power supplies have an adjustment for the maximum voltage (electric potential) and the maximum current they will provide. Most power supplies also have an internal meter to tell you the actual curren ...
... A power supply is a device that supplies a constant voltage or a constant current to a circuit. Most power supplies have an adjustment for the maximum voltage (electric potential) and the maximum current they will provide. Most power supplies also have an internal meter to tell you the actual curren ...
Power Electronics - Dr. Imtiaz Hussain
... • This conversion method is more power efficient (often 75% to 98%) than linear voltage regulation (which dissipates unwanted power as heat). • This efficiency is beneficial to increasing the running time of battery operated devices. ...
... • This conversion method is more power efficient (often 75% to 98%) than linear voltage regulation (which dissipates unwanted power as heat). • This efficiency is beneficial to increasing the running time of battery operated devices. ...
Voltage, Resistance, and Current Lab Instructions
... For the following supply voltages, measure and record: power supply voltage, current through the resistor, and voltage across the resistor: 0.0, 2.0, 3.0, and 4.0 volts. Disconnect the supply from the circuit. What is the relationship among the current through the resistor, the resistance, and the ...
... For the following supply voltages, measure and record: power supply voltage, current through the resistor, and voltage across the resistor: 0.0, 2.0, 3.0, and 4.0 volts. Disconnect the supply from the circuit. What is the relationship among the current through the resistor, the resistance, and the ...
Pi Controlled DC-DC Converter Based on Three-State
... the advantages of reduced voltage across the switches using a three-level commutation cell, and decreased switching losses obtained from a soft switching technique. As the power rating increases, it is often required to associate converters in series or in parallel. By using interleaving techniques ...
... the advantages of reduced voltage across the switches using a three-level commutation cell, and decreased switching losses obtained from a soft switching technique. As the power rating increases, it is often required to associate converters in series or in parallel. By using interleaving techniques ...
Guide Specification for Ashley-Edison OSES Single Phase AC
... This specification covers the electrical aspects for an Outdoor AC Voltage Stabiliser / Converter that shall provide automatically stabilized and regulated power to sensitive electrical and electronic equipment. The Stabiliser should be based on the Servo Electronic design principle comprising a tra ...
... This specification covers the electrical aspects for an Outdoor AC Voltage Stabiliser / Converter that shall provide automatically stabilized and regulated power to sensitive electrical and electronic equipment. The Stabiliser should be based on the Servo Electronic design principle comprising a tra ...
C7/C9 LED Retrofits Instructions
... incandescent lamps. The challenge in designing with LEDs is that they run on very low voltage -‐ typically 3.5VDC for a white LED. To reduce the 120VAC line voltage to a few volts, the manufactur ...
... incandescent lamps. The challenge in designing with LEDs is that they run on very low voltage -‐ typically 3.5VDC for a white LED. To reduce the 120VAC line voltage to a few volts, the manufactur ...
7B21 数据手册DataSheet 下载
... The modules feature a maximum nonlinearity of +0.02% and are factory calibrated to guarantee a maximum accuracy specification of +0.1%. The 7B Series offers up to 1500 V rms continuous common mode voltage isolation and 120 V rms of field wiring input protection. The power supplies necessary to drive ...
... The modules feature a maximum nonlinearity of +0.02% and are factory calibrated to guarantee a maximum accuracy specification of +0.1%. The 7B Series offers up to 1500 V rms continuous common mode voltage isolation and 120 V rms of field wiring input protection. The power supplies necessary to drive ...
P1000 Mechanical Specification Submittal
... Bipolar Transistors), with a carrier frequency range of 1 kHz to 15 kHz, permits quiet motor operation. This drive has one control logic board and keypad for all horsepower ratings. Printed circuit boards employ surface mount technology, providing both high reliability, and small physical size of th ...
... Bipolar Transistors), with a carrier frequency range of 1 kHz to 15 kHz, permits quiet motor operation. This drive has one control logic board and keypad for all horsepower ratings. Printed circuit boards employ surface mount technology, providing both high reliability, and small physical size of th ...
800-75 300 A Externally Operated Series Multiple (Dual Voltage
... 300 A Externally Operated Series Multiple (Dual Voltage) Switch GENERAL The Cooper Power Systems 300 A externally operated series multiple switch is used to change connection of de-energized transformer windings between series and parallel to provide different common transformer voltage ratios.The ...
... 300 A Externally Operated Series Multiple (Dual Voltage) Switch GENERAL The Cooper Power Systems 300 A externally operated series multiple switch is used to change connection of de-energized transformer windings between series and parallel to provide different common transformer voltage ratios.The ...
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.