D356B Electroluminescent Lamp Driver IC
... Theory of Operation Electroluminescent (EL) lamps are essentially capacitors with one transparent electrode and a special phosphor material in the dielectric. The phosphor glows when a strong AC voltage is applied across the EL lamp electrodes. The required AC voltage is typically not present in mos ...
... Theory of Operation Electroluminescent (EL) lamps are essentially capacitors with one transparent electrode and a special phosphor material in the dielectric. The phosphor glows when a strong AC voltage is applied across the EL lamp electrodes. The required AC voltage is typically not present in mos ...
Analog Dialogue Volume 48 Number 2
... correlate observable vibration with typical wear-out mechanisms, such as bearings, gears, chains, belts, brushes, shafts, coils, and valves. In a typical machine, at least one of these mechanisms requires regular maintenance. Figure 1 shows three examples of the vibration vs. time relationship for a ...
... correlate observable vibration with typical wear-out mechanisms, such as bearings, gears, chains, belts, brushes, shafts, coils, and valves. In a typical machine, at least one of these mechanisms requires regular maintenance. Figure 1 shows three examples of the vibration vs. time relationship for a ...
3 Ohm`s Law and Resistors
... The Physics One of the things that students have a difficult time with when they first learn about circuits is the electronics “lingo”. The lingo and the circuit concepts can be very intimidating at first. It’s almost like learning a new language. So, as the concepts are discussed below, some of the ...
... The Physics One of the things that students have a difficult time with when they first learn about circuits is the electronics “lingo”. The lingo and the circuit concepts can be very intimidating at first. It’s almost like learning a new language. So, as the concepts are discussed below, some of the ...
a high-efficiency mosfet transformerless inverter for
... With worldwide growing demand for electric energy, there has been a great interest in exploring photovoltaic (pv) sources. The pv microinverter has become a popular trend for its great flexibility in system installation and expansion, safety of low-input voltage, and high system-level energy harness ...
... With worldwide growing demand for electric energy, there has been a great interest in exploring photovoltaic (pv) sources. The pv microinverter has become a popular trend for its great flexibility in system installation and expansion, safety of low-input voltage, and high system-level energy harness ...
TPS5450 数据资料 dataSheet 下载
... The output voltage of the regulator is set by feeding back the center point voltage of an external resistor divider network to the VSENSE pin. In steady-state operation, the VSENSE pin voltage should be equal to the voltage reference 1.221 V. The TPS5450 implements internal compensation to simplify ...
... The output voltage of the regulator is set by feeding back the center point voltage of an external resistor divider network to the VSENSE pin. In steady-state operation, the VSENSE pin voltage should be equal to the voltage reference 1.221 V. The TPS5450 implements internal compensation to simplify ...
MAX8633–MAX8636 Dual 300mA Pin-Programmable LDO Linear Regulators General Description
... ture range. Output capacitors can be reduced to 1µF for load currents less than 150mA. The MAX8633– MAX8636 are optimized for ceramic capacitors and require low equivalent-series resistance (ESR) to achieve the stated specifications for low-output noise and power-supply rejection. To ensure proper o ...
... ture range. Output capacitors can be reduced to 1µF for load currents less than 150mA. The MAX8633– MAX8636 are optimized for ceramic capacitors and require low equivalent-series resistance (ESR) to achieve the stated specifications for low-output noise and power-supply rejection. To ensure proper o ...
Choosing an Appropriate Pull-up/Pull-down
... the datasheet gives known performance, meaning VOL will not exceed its specified maximum voltage at that current. Currents up to the specified absolute maximum PG sink current can be used, but they could yield a VOL higher than its specified maximum. (In the case of the TPS62067 used in the example, ...
... the datasheet gives known performance, meaning VOL will not exceed its specified maximum voltage at that current. Currents up to the specified absolute maximum PG sink current can be used, but they could yield a VOL higher than its specified maximum. (In the case of the TPS62067 used in the example, ...
BP26436443
... compensate reactive power at factory level, only capacitor and passive filters were used. More, new PWM based converters for motor control are able to provide almost unity power factor operations. We cannot depend on this capacitor to filter out those harmonics. This is one of the reasons that the r ...
... compensate reactive power at factory level, only capacitor and passive filters were used. More, new PWM based converters for motor control are able to provide almost unity power factor operations. We cannot depend on this capacitor to filter out those harmonics. This is one of the reasons that the r ...
F:\Instrumental Considerations.wpd
... Because noise is random, it can be thought of as incoherent, therefore destructive interference is likely to occur on summation. The signal, on the other hand, is coherent, and therefore sums constructively, thus increasing it’s amplitude. As repetitive waveforms are summed the result is to increase ...
... Because noise is random, it can be thought of as incoherent, therefore destructive interference is likely to occur on summation. The signal, on the other hand, is coherent, and therefore sums constructively, thus increasing it’s amplitude. As repetitive waveforms are summed the result is to increase ...
Zap! (Electric Discharge) - Here. There. Everywhere.
... the carpet has produced a large build-up of negative electric charge on your finger. This produces an electric potential difference, or voltage, between your finger and the doorknob. If the electric potential difference is large enough, a sudden flow of current, called an electric discharge, will oc ...
... the carpet has produced a large build-up of negative electric charge on your finger. This produces an electric potential difference, or voltage, between your finger and the doorknob. If the electric potential difference is large enough, a sudden flow of current, called an electric discharge, will oc ...
Ignitron Driver Manual - Wide Bandwidth High Voltage Probes
... This accessory prevents positive voltages of greater than 3 kV from being applied to the trigger unit. Negative voltages are protected by diodes in the unit itself. Such voltages are sometimes applied to the ignitor during a ringing discharge. The current output is reduced by about 50 A when this bo ...
... This accessory prevents positive voltages of greater than 3 kV from being applied to the trigger unit. Negative voltages are protected by diodes in the unit itself. Such voltages are sometimes applied to the ignitor during a ringing discharge. The current output is reduced by about 50 A when this bo ...
Y04408126132
... comparison between level shifted PWM and phase shifted PWM Cascaded H – bridge (CHB) Inverter as DSTATCOM in Power System (PS) for compensation of reactive power and harmonics. The DSTATCOM helps to improve the power factor and eliminate the Total Harmonics Distortion (THD) drawn from a NonLinear Lo ...
... comparison between level shifted PWM and phase shifted PWM Cascaded H – bridge (CHB) Inverter as DSTATCOM in Power System (PS) for compensation of reactive power and harmonics. The DSTATCOM helps to improve the power factor and eliminate the Total Harmonics Distortion (THD) drawn from a NonLinear Lo ...
LM117 LM317A LM317 3-Terminal Adjustable Regulator
... IC’s. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Normally, no capacitors are needed unless the device is situated more than 6 inches from the ...
... IC’s. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Normally, no capacitors are needed unless the device is situated more than 6 inches from the ...
Battery charge I.C. - STMicroelectronics
... low), handles the switch in charge mode. This switch allows the battery charge with a strong current. The drop of this internal P-Channel MOS is very low (200mV @ 800mA) in order to optimize the efficiency of the charge. The switch is not internally protected against short circuit or overcurrent con ...
... low), handles the switch in charge mode. This switch allows the battery charge with a strong current. The drop of this internal P-Channel MOS is very low (200mV @ 800mA) in order to optimize the efficiency of the charge. The switch is not internally protected against short circuit or overcurrent con ...
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.