p-n Junction Photocurrent Modelling Evaluation under Optical and Electrical Excitation
... values, where the total current reduces - by orders of magnitude - towards zero values. Note that as predicted by Eqn. (3), for forward polarities in the range of 0 < Vfwd ≤ Voc, the net current has a negative sign, therefore the device produces power. At higher applied forward voltages, the exponen ...
... values, where the total current reduces - by orders of magnitude - towards zero values. Note that as predicted by Eqn. (3), for forward polarities in the range of 0 < Vfwd ≤ Voc, the net current has a negative sign, therefore the device produces power. At higher applied forward voltages, the exponen ...
A half-bridge inverter employing an auxiliary circuit with
... merits of very high thermal conversion efficiency, rapid heating, local spot heating, direct heating, high power density, high reliability, low running cost and nonacoustic noise. Most of the IH systems are constructed of resonant inverters operating at high frequencies. However, they have caused so ...
... merits of very high thermal conversion efficiency, rapid heating, local spot heating, direct heating, high power density, high reliability, low running cost and nonacoustic noise. Most of the IH systems are constructed of resonant inverters operating at high frequencies. However, they have caused so ...
Silicon Chip errata for articles published in 2003
... to do this modification if you’re using the remote power-up function. (11/03) Current Clamp Adaptor For DMMs, September 2003: As presented, the clamp adaptor is not suitable for use with 240VAC mains when the wiring is uninsulated. To make it safe, both the metal clip and the toroid must have insula ...
... to do this modification if you’re using the remote power-up function. (11/03) Current Clamp Adaptor For DMMs, September 2003: As presented, the clamp adaptor is not suitable for use with 240VAC mains when the wiring is uninsulated. To make it safe, both the metal clip and the toroid must have insula ...
Charge Pump Flash LED Driver
... Output over-voltage protection is included to prevent the SC635 from generating an output voltage that could damage other devices connected to it such as load LEDs and bypass capacitors. When the output voltage exceeds 5.5V, the OVP circuit disables the charge pump until the voltage Flash Mode Flash ...
... Output over-voltage protection is included to prevent the SC635 from generating an output voltage that could damage other devices connected to it such as load LEDs and bypass capacitors. When the output voltage exceeds 5.5V, the OVP circuit disables the charge pump until the voltage Flash Mode Flash ...
ADD5203 8-String, White LED Driver with SMBus and
... The ADD5203 contains an LED open and short fault protection circuit for each channel. If the headroom voltage of the current source remains below 200 mV while the boost converter output reaches the OVP level, the ADD5203 recognizes that the current source has an open load fault for the current sourc ...
... The ADD5203 contains an LED open and short fault protection circuit for each channel. If the headroom voltage of the current source remains below 200 mV while the boost converter output reaches the OVP level, the ADD5203 recognizes that the current source has an open load fault for the current sourc ...
Full-Text PDF - Accents Journal
... converter provides a controlled DC voltage from uncontrolled DC output of DBR, with PFC action through high frequency switching. The duty ratio (D) of the DC-DC converter is controlled by the DC voltages at its input and output. The switching frequency (fs) is decided by the switching device used, p ...
... converter provides a controlled DC voltage from uncontrolled DC output of DBR, with PFC action through high frequency switching. The duty ratio (D) of the DC-DC converter is controlled by the DC voltages at its input and output. The switching frequency (fs) is decided by the switching device used, p ...
DRV8801-Q1 DMOS Full-Bridge Motor Drivers
... The current flowing through the high-side and low-side drivers is monitored to ensure that the motor lead is not shorted to supply or ground. If a short is detected, the full-bridge outputs are turned off, flag nFAULT is driven low, and a 1.2-ms fault timer is started. After this 1.2-ms period, tOCP ...
... The current flowing through the high-side and low-side drivers is monitored to ensure that the motor lead is not shorted to supply or ground. If a short is detected, the full-bridge outputs are turned off, flag nFAULT is driven low, and a 1.2-ms fault timer is started. After this 1.2-ms period, tOCP ...
TraqData Application..
... TraqSync PRO - black 15 pin connector with blue wire and RJ-45 cable. This device is used to connect a tach input and control a GoPro HERO2 HD video camera. This unit can be switched for COIL or ELECTRONIC ranges with a microswitch on the circuit board inside the connector cover. TraqData (original) ...
... TraqSync PRO - black 15 pin connector with blue wire and RJ-45 cable. This device is used to connect a tach input and control a GoPro HERO2 HD video camera. This unit can be switched for COIL or ELECTRONIC ranges with a microswitch on the circuit board inside the connector cover. TraqData (original) ...
Wireless Rapid Charger of Super Capacitor
... The energy transmission by the magnetic induction is an important technology, it contributes to making of various electric equipment cordless. It has been used for the wireless electric power transmission to IC card and the IC tag, etc., and it had tried to be used for the noncontact charger of the ...
... The energy transmission by the magnetic induction is an important technology, it contributes to making of various electric equipment cordless. It has been used for the wireless electric power transmission to IC card and the IC tag, etc., and it had tried to be used for the noncontact charger of the ...
Servay 7th Edition_Chapter33
... called the positive direction. Between points a and b, the current is decreasing in magnitude but is still in the positive direction. At point b, the current is momentarily zero; it then begins to increase in the negative direction between points b and c. At point c, the current has reached its maxi ...
... called the positive direction. Between points a and b, the current is decreasing in magnitude but is still in the positive direction. At point b, the current is momentarily zero; it then begins to increase in the negative direction between points b and c. At point c, the current has reached its maxi ...
MAX17497A/MAX17497B AC-DC and DC-DC Peak Current-Mode Converters with Integrated Step-Down Regulator General Description
... Note 1: All devices are 100% production tested at TA = +25NC. Limits over temperature are guaranteed by design. Note 2: The MAX17497A is intended for use in universal input power supplies. The internal clamp circuit at IN is used to prevent the bootstrap capacitor from charging to a voltage beyond ...
... Note 1: All devices are 100% production tested at TA = +25NC. Limits over temperature are guaranteed by design. Note 2: The MAX17497A is intended for use in universal input power supplies. The internal clamp circuit at IN is used to prevent the bootstrap capacitor from charging to a voltage beyond ...
Experiment 3
... drop across a load resistor and measuring the current flowing through it, one was able to calculate the apparent power dissipated by the resistor (S=VI). Since the load was a pure resistance, the apparent power, S, was equal to the real power, P. Mathematically, one would say that P = VI cos . The ...
... drop across a load resistor and measuring the current flowing through it, one was able to calculate the apparent power dissipated by the resistor (S=VI). Since the load was a pure resistance, the apparent power, S, was equal to the real power, P. Mathematically, one would say that P = VI cos . The ...
LTM8048 - 3.1VIN to 32VIN Isolated uModule DC/DC Converter with LDO Post Regulator
... VIN pin, but if the BIAS pin is connected to an external voltage higher than 3.1V, bias power will be drawn from the external source, improving efficiency. VBIAS must not exceed VIN. The RUN pin is used to turn on or off the LTM8048, disconnecting the output and reducing the input current to 1μA or ...
... VIN pin, but if the BIAS pin is connected to an external voltage higher than 3.1V, bias power will be drawn from the external source, improving efficiency. VBIAS must not exceed VIN. The RUN pin is used to turn on or off the LTM8048, disconnecting the output and reducing the input current to 1μA or ...
Chapter 7 NOISE
... A 1-Mbps NRZ link uses a 100Ω load at 300 K. The wavelength is 0.82 µm, and the desired error rate is 10-4. The PIN detector quantum efficiency is unity. Compute the optic power incident on ...
... A 1-Mbps NRZ link uses a 100Ω load at 300 K. The wavelength is 0.82 µm, and the desired error rate is 10-4. The PIN detector quantum efficiency is unity. Compute the optic power incident on ...
MAX8738 EEPROM可编程、TFT、VCOM校准器，I²C接口
... potentiometers used for adjusting the LCD backplane voltage (VCOM) in TFT LCD displays. The MAX8738 attaches to an external resistive voltage-divider and sinks a programmable current (IOUT), which sets the VCOM level (Figure 2). An internal 7-bit DAC controls the sink current and allows the user to ...
... potentiometers used for adjusting the LCD backplane voltage (VCOM) in TFT LCD displays. The MAX8738 attaches to an external resistive voltage-divider and sinks a programmable current (IOUT), which sets the VCOM level (Figure 2). An internal 7-bit DAC controls the sink current and allows the user to ...
ELECTRONIC DEVICES
... To understand the characteristics and applications of Diode. To understand the characteristics, configurations and biasing of transistors. To understand the characteristics and biasing of FET. To study the working of CRO. To study the working of Thyristors and their characteristics. Unit 1 ...
... To understand the characteristics and applications of Diode. To understand the characteristics, configurations and biasing of transistors. To understand the characteristics and biasing of FET. To study the working of CRO. To study the working of Thyristors and their characteristics. Unit 1 ...
MAX1677 Compact, High-Efficiency, Dual-Output Step-Up and LCD Bias DC-DC Converter General Description
... set by LCDPOL input (Table 3). Figure 2 shows the MAX1677 configured for a positive LCD output voltage with a 3.3V main output. Figure 3 shows the MAX1677 configured for a negative LCD output. LCDPOL also allows the current limit of LCDLX to be reduced from 350mA to 225mA to allow minimum-size induc ...
... set by LCDPOL input (Table 3). Figure 2 shows the MAX1677 configured for a positive LCD output voltage with a 3.3V main output. Figure 3 shows the MAX1677 configured for a negative LCD output. LCDPOL also allows the current limit of LCDLX to be reduced from 350mA to 225mA to allow minimum-size induc ...
Chapter 11 Shielded Metal Arc Welding Principles
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... load resistance and an input voltage are changed, the dynamic characteristics are varied greatly, that is, the PFC converter has non-linear characteristics. In many applications of the interleaved PFC converters, loads cannot be speci ed in advance, i.e., their amplitudes are suddenly changed from t ...
V rms
... drop across a load resistor and measuring the current flowing through it, one was able to calculate the apparent power dissipated by the resistor (S=VI). Since the load was a pure resistance, the apparent power, S, was equal to the real power, P. Mathematically, one would say that P = VI cos . The ...
... drop across a load resistor and measuring the current flowing through it, one was able to calculate the apparent power dissipated by the resistor (S=VI). Since the load was a pure resistance, the apparent power, S, was equal to the real power, P. Mathematically, one would say that P = VI cos . The ...
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.