... current IC is used to control the intensity and power of SMD LED Tube light. B. Working and calculation Forward voltage of SMD led is 3.3V approximately. Lumens range is from 180 to 200 so average lumens is 190 and we want 8 SMD led to mount on strip SMD led PCB so total lumens is 190*8=1520 lumens ...
Opto-isolated High Voltage Meter (OHVM) - hot
... output of the bridge now enables the meter to monitor AC. A small cap wired in parallel with the DC output of the bridge can allow monitoring of peak values, and if the resistor value is increased to reduce current, rms values can be displayed. Realize that the values displayed on the meter are rela ...
... output of the bridge now enables the meter to monitor AC. A small cap wired in parallel with the DC output of the bridge can allow monitoring of peak values, and if the resistor value is increased to reduce current, rms values can be displayed. Realize that the values displayed on the meter are rela ...
Current Electricity - Red Hook Central School Dst
... What does current mean? Flow or motion. What does electric current mean? Flow or motion of electric charge. ...
... What does current mean? Flow or motion. What does electric current mean? Flow or motion of electric charge. ...
Analog-Frequency converter XXXF70-90
... further calibration is generally unnecessary. If the output values are not correct, first of all check the connections, the power supply (is the supply voltage correct ?), the experimental arrangement and all instruments in use. We recommend that when working with programmable or configurable module ...
... further calibration is generally unnecessary. If the output values are not correct, first of all check the connections, the power supply (is the supply voltage correct ?), the experimental arrangement and all instruments in use. We recommend that when working with programmable or configurable module ...
Mar 2002 Unique Instrumentation Amplifier Precisely Senses Differential Voltages from mV to V
... offset drift of 50nV/°C. It also features a highly accurate 3ppm gain nonlinearity and 0.001% gain error— values unmatched by any other instrumentation amplifier available. The internal zero drift op amp of the LTC2053 does not significantly contribute to the overall DC error of the instrumentation ...
... offset drift of 50nV/°C. It also features a highly accurate 3ppm gain nonlinearity and 0.001% gain error— values unmatched by any other instrumentation amplifier available. The internal zero drift op amp of the LTC2053 does not significantly contribute to the overall DC error of the instrumentation ...
PowerPoint
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
Powerpoint
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
MS Word
... You are given the circuit drawn below. It is fabricated in a CMOS process for which nCOX = 2pCOX = 200 A/V2, V’An = |V’Ap| = 20 V/m, Vtn = -Vtp = 0.5 volt and VDD = 2.5 volts. The two transitor types have L = 0.5 m and are to be operated at |VOV | = 0.3 volt. Find the required gate node voltage ...
... You are given the circuit drawn below. It is fabricated in a CMOS process for which nCOX = 2pCOX = 200 A/V2, V’An = |V’Ap| = 20 V/m, Vtn = -Vtp = 0.5 volt and VDD = 2.5 volts. The two transitor types have L = 0.5 m and are to be operated at |VOV | = 0.3 volt. Find the required gate node voltage ...
Low voltage fast-switching NPN power transistors
... Low voltage fast-switching NPN power transistors ...
... Low voltage fast-switching NPN power transistors ...
File
... We used the fifth one; Current Mode with the W, 2W Ladder Network. There are two reasons for that, 1) We are not using the voltage mode as it is not an industrially desirable design. A lot of transistors can be assembled in a small chip; the resistors take a lot of space. 2) Selection of the W, 2W ...
... We used the fifth one; Current Mode with the W, 2W Ladder Network. There are two reasons for that, 1) We are not using the voltage mode as it is not an industrially desirable design. A lot of transistors can be assembled in a small chip; the resistors take a lot of space. 2) Selection of the W, 2W ...
ECE632_Final
... For the 750mV output we decided to use a linear regulator with the current mirror topology. Ramadass et al derived a maximum efficiency for capacitive designs in a 4:3 step down case to be 75%, and achieved a measured efficiency of approximately 74% [5]. Since this is only marginally different from ...
... For the 750mV output we decided to use a linear regulator with the current mirror topology. Ramadass et al derived a maximum efficiency for capacitive designs in a 4:3 step down case to be 75%, and achieved a measured efficiency of approximately 74% [5]. Since this is only marginally different from ...
PSRR for Purepath Digital Audio Amplifiers
... • The audio 1-kHz signal • Harmonic distortion of the 1-kHz signal (second and third harmonics shown) • Sidebands to the 1-kHz tone (and to the harmonics) coming from the multiplication of the 100-Hz ripple voltage and the 1-kHz audio signal and its harmonics • Feedthrough of the 100-Hz signal, with ...
... • The audio 1-kHz signal • Harmonic distortion of the 1-kHz signal (second and third harmonics shown) • Sidebands to the 1-kHz tone (and to the harmonics) coming from the multiplication of the 100-Hz ripple voltage and the 1-kHz audio signal and its harmonics • Feedthrough of the 100-Hz signal, with ...
PROJECT TITLE: MPOT – Music Playing over Tesla
... superelevation on the top of the coil. An additional toroid on the top of the coil would increase the capacitance on this certain point to overcome this problem. PWM generation circuit: This circuit consists of a Texas Instruments TL494CN IC with additional components which are responsible for adjus ...
... superelevation on the top of the coil. An additional toroid on the top of the coil would increase the capacitance on this certain point to overcome this problem. PWM generation circuit: This circuit consists of a Texas Instruments TL494CN IC with additional components which are responsible for adjus ...
Electricity
... Conductors Conductors have a large number of loosely attached electrons that can move very easily from one atom to another. Examples: ...
... Conductors Conductors have a large number of loosely attached electrons that can move very easily from one atom to another. Examples: ...
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.