Chapter 33
... 1. (a) Why does a capacitor act as a short circuit at high frequencies? (b) Why does a capacitor act as an open circuit at low frequencies? 2. (a) Explain how the mnemonic “ELI the ICE man” can be used to recall whether current leads voltage or voltage leads current in RLC circuits. Note that E repr ...
... 1. (a) Why does a capacitor act as a short circuit at high frequencies? (b) Why does a capacitor act as an open circuit at low frequencies? 2. (a) Explain how the mnemonic “ELI the ICE man” can be used to recall whether current leads voltage or voltage leads current in RLC circuits. Note that E repr ...
AN-1137 APPLICATION NOTE
... of interest. For example, the sampling rate in the ADE7816 is 1.024 MHz, and the bandwidth of interest is 40 Hz to 2 kHz. Oversampling has the effect of spreading the quantization noise (noise due to sampling) over a wider bandwidth. With the noise spread more thinly over a wider bandwidth, the quan ...
... of interest. For example, the sampling rate in the ADE7816 is 1.024 MHz, and the bandwidth of interest is 40 Hz to 2 kHz. Oversampling has the effect of spreading the quantization noise (noise due to sampling) over a wider bandwidth. With the noise spread more thinly over a wider bandwidth, the quan ...
3 Ohm’s Law Experiment 3.1
... voltmeter) or current (as an ammeter), one cable is always connected to the COM plug. If the multimeter is used to measure current, the other lead is connected to either the 10A plug or the 400mA plug. A voltmeter must be connected in parallel (across) to the circuit element of interest, as shown in ...
... voltmeter) or current (as an ammeter), one cable is always connected to the COM plug. If the multimeter is used to measure current, the other lead is connected to either the 10A plug or the 400mA plug. A voltmeter must be connected in parallel (across) to the circuit element of interest, as shown in ...
Delphi Series E48SH, 120W Eighth Brick Family DC/DC Power
... option code A, the current limit function will work by initially reduce duty cycle of the module, the unit will go out of regulation but remains in safe operating area before the output drops below 50%. When output drops below 50%, the modules will automatically shut down and enter hiccup mode. In o ...
... option code A, the current limit function will work by initially reduce duty cycle of the module, the unit will go out of regulation but remains in safe operating area before the output drops below 50%. When output drops below 50%, the modules will automatically shut down and enter hiccup mode. In o ...
DEIC421 - IXYS Power
... power supply in 2-6ns (depending upon the input capacitance of the MOSFET being driven). Good performance requires very low impedance between the driver and the power supply. The most common method of achieving this low impedance is to bypass the power supply at the driver with a capacitance value m ...
... power supply in 2-6ns (depending upon the input capacitance of the MOSFET being driven). Good performance requires very low impedance between the driver and the power supply. The most common method of achieving this low impedance is to bypass the power supply at the driver with a capacitance value m ...
RESET MAX1947 Low Input/Output Voltage Step-Up DC-DC Converter with
... resistance, allowing the smallest overall circuit dimensions but with lower output-current capability. Circuits using larger inductance values exhibit higher outputcurrent capability, but are larger for the same series resistance and current rating. The inductor’s incremental saturation current rati ...
... resistance, allowing the smallest overall circuit dimensions but with lower output-current capability. Circuits using larger inductance values exhibit higher outputcurrent capability, but are larger for the same series resistance and current rating. The inductor’s incremental saturation current rati ...
LTC1443/LTC1444/LTC1445 - Ultralow Power Quad Comparators with Reference
... typically 10pA at 25°C. IN A + (Pin 5): Noninverting Input of Comparator A. Input common mode range from V – to V + – 1.3V. Input current typically 10pA at 25°C. IN B – (Pin 6): Inverting Input of Comparator B. Input common mode range from V – to V + – 1.3V. Input current typically 10pA at 25°C. IN ...
... typically 10pA at 25°C. IN A + (Pin 5): Noninverting Input of Comparator A. Input common mode range from V – to V + – 1.3V. Input current typically 10pA at 25°C. IN B – (Pin 6): Inverting Input of Comparator B. Input common mode range from V – to V + – 1.3V. Input current typically 10pA at 25°C. IN ...
(Analog) VLSI Circuit Design Fall 2016
... • Inductors are generally too big for widespread use in analog IC design • Can fit thousands of transistors in a typical inductor area (100m x 100m) ...
... • Inductors are generally too big for widespread use in analog IC design • Can fit thousands of transistors in a typical inductor area (100m x 100m) ...
MICROWAVE MEASUREMENTS 3.1 Understand the transmission
... Are usually thin pieces of wire such as platinum. They are mounted as terminating devices in a section of transmission line. The section of transmission line with the mounting structure is called a detector mount. The increase of temperature of the baretter due to the power absorbed from the signal ...
... Are usually thin pieces of wire such as platinum. They are mounted as terminating devices in a section of transmission line. The section of transmission line with the mounting structure is called a detector mount. The increase of temperature of the baretter due to the power absorbed from the signal ...
Electricity Problem Booklet
... (d) The switch, S, remains closed. Draw a voltage-time graph that shows how the reading on the voltmeter, V1, changes until the capacitor is fully charged. (e) Describe two changes that could be made to the circuit to increase the time taken for the capacitor, C, to charge. ...
... (d) The switch, S, remains closed. Draw a voltage-time graph that shows how the reading on the voltmeter, V1, changes until the capacitor is fully charged. (e) Describe two changes that could be made to the circuit to increase the time taken for the capacitor, C, to charge. ...
LM555 - Texas Instruments
... The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an ...
... The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an ...
TPS60204 数据资料 dataSheet 下载
... When the output current is higher then the LinSkip current threshold, the charge pump runs continuously at the switching frequency f(OSC). The control circuit, fed from the error amplifier, controls the charge on C1 and C2 by controlling the gates and hence the rDS(ON) of the integrated MOSFETs. Whe ...
... When the output current is higher then the LinSkip current threshold, the charge pump runs continuously at the switching frequency f(OSC). The control circuit, fed from the error amplifier, controls the charge on C1 and C2 by controlling the gates and hence the rDS(ON) of the integrated MOSFETs. Whe ...
Surge Protectors:
... protector can absorb, or how many volts of surging electricity it takes to effectively render the device useless. While a lightning strike and surges in excess of 6,000 volts will almost certainly destroy your device and anything connected to it instantly, generally the higher the Joule rating the l ...
... protector can absorb, or how many volts of surging electricity it takes to effectively render the device useless. While a lightning strike and surges in excess of 6,000 volts will almost certainly destroy your device and anything connected to it instantly, generally the higher the Joule rating the l ...
TSMS3700 GaAs Infrared Emitting Diode in SMT Package
... Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting su ...
... Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting su ...
UCC28050 数据资料 dataSheet 下载
... In the transition mode operation, the PWM circuit is self-oscillating with the turn-on being governed by an inductor zero-current detector (ZCD pin) and the turn-off being governed by the current-sense comparator. Additionally, the controller provides features such as peak current limit, default tim ...
... In the transition mode operation, the PWM circuit is self-oscillating with the turn-on being governed by an inductor zero-current detector (ZCD pin) and the turn-off being governed by the current-sense comparator. Additionally, the controller provides features such as peak current limit, default tim ...
Kirchoff`s Rules
... may recall that Georg Ohm only discovered the relationship between voltage, current, and resistance in 1827. Kirchoff was certainly familiar with this work, and he first discovered what are now called Kirchoff’s Circuit Laws during his electrical studies while a student in the 1840s. This later form ...
... may recall that Georg Ohm only discovered the relationship between voltage, current, and resistance in 1827. Kirchoff was certainly familiar with this work, and he first discovered what are now called Kirchoff’s Circuit Laws during his electrical studies while a student in the 1840s. This later form ...
Types of Resistance
... There are two general ways in which variable resistors are used. One is the variable resistor whose value is easily changed, like the volume adjustment of Radio. The other is semi-fixed resistor that is not meant to be adjusted by anyone but a technician. It is used to adjust the operating condition ...
... There are two general ways in which variable resistors are used. One is the variable resistor whose value is easily changed, like the volume adjustment of Radio. The other is semi-fixed resistor that is not meant to be adjusted by anyone but a technician. It is used to adjust the operating condition ...
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.