Halogen Lamp Modeling For Low Voltage Power - HAL
... The main line voltage is firstly rectified by the full-bridge rectifier and the DC bus capacitor is fully charged. The power stage is a half-bridge inverter, supplied from the power line, which delivers the power to the lamp by passing through the high frequency transformer (HFT). The two inverters ...
... The main line voltage is firstly rectified by the full-bridge rectifier and the DC bus capacitor is fully charged. The power stage is a half-bridge inverter, supplied from the power line, which delivers the power to the lamp by passing through the high frequency transformer (HFT). The two inverters ...
Electric Current
... Engineers and designers of electrical circuits use special symbols that show the components and connections in a circuit. A drawing made with these symbols is called a circuit diagram. Follow these rules when you draw circuit ...
... Engineers and designers of electrical circuits use special symbols that show the components and connections in a circuit. A drawing made with these symbols is called a circuit diagram. Follow these rules when you draw circuit ...
4. SIGNAL PROCESSING CIRCUITRY 4.1. INTRODUCTION
... transistors (small signal impedances), the output resistance of the amplifier is much higher than the small signal resistance seen at the other nodes in the circuit. It is obvious thus that even with a moderate capacitive load on the first stage, the first pole CUp,1 is closest to the origin and als ...
... transistors (small signal impedances), the output resistance of the amplifier is much higher than the small signal resistance seen at the other nodes in the circuit. It is obvious thus that even with a moderate capacitive load on the first stage, the first pole CUp,1 is closest to the origin and als ...
LTC4400-1/LTC4400-2 - RF Power Controllers with 450kHz Loop BW and 45dB Dynamic Range.
... The external voltage gain associated with the RF channel can vary significantly between RF power amplifier types. The LTC4400-X frequency compensation has been optimized to be stable with several different power amplifiers and manufacturers. This frequency compensation generally defines the loop dyn ...
... The external voltage gain associated with the RF channel can vary significantly between RF power amplifier types. The LTC4400-X frequency compensation has been optimized to be stable with several different power amplifiers and manufacturers. This frequency compensation generally defines the loop dyn ...
TGA8399B-SCC 数据资料DataSheet下载
... dB. The device features high gain of 26 dB across the band, while providing a nominal output power at P1dB gain compression of 11dBm. Typical input and output return loss is 18 dB. Ground is provided to the circuitry through vias to the backside metallization. The TGA8399B-SCC low noise amplifier is ...
... dB. The device features high gain of 26 dB across the band, while providing a nominal output power at P1dB gain compression of 11dBm. Typical input and output return loss is 18 dB. Ground is provided to the circuitry through vias to the backside metallization. The TGA8399B-SCC low noise amplifier is ...
RECOMMENDATION ITU-R BS.468-4*,**
... The overload capacity of the measuring set should be more than 20 dB with respect to the maximum indication of the scale at all settings of the attenuators. The term “overload capacity” refers both to absence of clipping in linear stages and to retention of the law of any logarithmic or similar stag ...
... The overload capacity of the measuring set should be more than 20 dB with respect to the maximum indication of the scale at all settings of the attenuators. The term “overload capacity” refers both to absence of clipping in linear stages and to retention of the law of any logarithmic or similar stag ...
Go Picture These!
... Another way to specify a radio signal frequency of 1,500,000 hertz is 1500 kHz. One thousand volts are equal to one kilovolt. If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, the reading that it would show is 3 amperes. 0.5 watts is equivalent to 500 milliwa ...
... Another way to specify a radio signal frequency of 1,500,000 hertz is 1500 kHz. One thousand volts are equal to one kilovolt. If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, the reading that it would show is 3 amperes. 0.5 watts is equivalent to 500 milliwa ...
MAX8740 TFT-LCD Step-Up DC-DC Converter General Description Features
... ratio of inductor resistance to other power path resistances, the best LIR can shift up or down. If the inductor resistance is relatively high, more ripple can be accepted to reduce the number of turns required and increase the wire diameter. If the inductor resistance is relatively low, increasing ...
... ratio of inductor resistance to other power path resistances, the best LIR can shift up or down. If the inductor resistance is relatively high, more ripple can be accepted to reduce the number of turns required and increase the wire diameter. If the inductor resistance is relatively low, increasing ...
TLV27L1 TLV27L2 FAMILY OF MICROPOWER RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS
... D Proper power supply decoupling—Use a 6.8-µF tantalum capacitor in parallel with a 0.1-µF ceramic capacitor on each supply terminal. It may be possible to share the tantalum among several amplifiers depending on the application, but a 0.1-µF ceramic capacitor should always be used on the supply ter ...
... D Proper power supply decoupling—Use a 6.8-µF tantalum capacitor in parallel with a 0.1-µF ceramic capacitor on each supply terminal. It may be possible to share the tantalum among several amplifiers depending on the application, but a 0.1-µF ceramic capacitor should always be used on the supply ter ...
Bipolar Junction Transistors (BJT)
... • The ac current gain for a transistor is different than the ...
... • The ac current gain for a transistor is different than the ...
VIPER22AS-E Datasheet
... Wide range of VDD voltage The VDD pin voltage range extends from 9 V to 38 V. This feature offers a great flexibility in design to achieve various behaviors. In Figure 4 on page 7 a forward configuration has been chosen to supply the device with two benefits: ...
... Wide range of VDD voltage The VDD pin voltage range extends from 9 V to 38 V. This feature offers a great flexibility in design to achieve various behaviors. In Figure 4 on page 7 a forward configuration has been chosen to supply the device with two benefits: ...
1,500W / 4 Ohms Power Amplifier Rod Elliott (ESP) Introduction
... carefully, because it is so important. The arrangement as shown will reduce quiescent current at elevated temperatures. For example, if total Iq at 24°C is 165mA, this will fall to ~40mA at 70°C. This is probably fine, because there is some delay between the a power 'surge' and the output transistor ...
... carefully, because it is so important. The arrangement as shown will reduce quiescent current at elevated temperatures. For example, if total Iq at 24°C is 165mA, this will fall to ~40mA at 70°C. This is probably fine, because there is some delay between the a power 'surge' and the output transistor ...
BH6766FVM
... supply lines. An external direction diode can be added. Power supply line Back electromotive force causes regenerated current to power supply line, therefore take a measure such as placing a capacitor between power supply and GND for routing regenerated current. And fully ensure that the capacitor c ...
... supply lines. An external direction diode can be added. Power supply line Back electromotive force causes regenerated current to power supply line, therefore take a measure such as placing a capacitor between power supply and GND for routing regenerated current. And fully ensure that the capacitor c ...
WIRE WOUND RESISTORS
... Dynamic braking resistors momentary temperature: <450°C Application voltage: 1kV Maximum design voltage; 3kV Terminals and mounting feet: 304 stainless steel. Resistor core material: Cordierite based. Resistor insulator material: Siliceous porcelain. ...
... Dynamic braking resistors momentary temperature: <450°C Application voltage: 1kV Maximum design voltage; 3kV Terminals and mounting feet: 304 stainless steel. Resistor core material: Cordierite based. Resistor insulator material: Siliceous porcelain. ...
Distribution Systems
... Difference in phase voltages will cause unbalanced currents in three-phase motors and raise the operating temperature. If the ratio of the lowest voltage reading to the highest is less than 0.95, corrective steps should be taken. ...
... Difference in phase voltages will cause unbalanced currents in three-phase motors and raise the operating temperature. If the ratio of the lowest voltage reading to the highest is less than 0.95, corrective steps should be taken. ...
Application Note AN-1100 IRS211(0,3) and IR211(0,3) Comparison Table of Contents
... supply transient spikes but at the same time reduces the absolute maximum rating to 20 V. For applications that require recovery from an output short-circuit to negative bus, do not allow VBS ≥25 V for more than 1 µs in such a short-circuit recovery event. To help ensure this parameter corresponds t ...
... supply transient spikes but at the same time reduces the absolute maximum rating to 20 V. For applications that require recovery from an output short-circuit to negative bus, do not allow VBS ≥25 V for more than 1 µs in such a short-circuit recovery event. To help ensure this parameter corresponds t ...
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.