Variable Frequency Drives 3-Phase Motor Control
... Slip compensation is actually a sophisticated version of the open loop concept. The slip compensation method of speed control does not monitor the actual shaft RPM. Rather, it utilizes drive output current transducers to monitor the current drawn by the connected motor. As discussed earlier, when a ...
... Slip compensation is actually a sophisticated version of the open loop concept. The slip compensation method of speed control does not monitor the actual shaft RPM. Rather, it utilizes drive output current transducers to monitor the current drawn by the connected motor. As discussed earlier, when a ...
DT1042-04SO Features Mechanical Data
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
Paper Title (use style: paper title)
... Recently power quality monitoring techniques such as real time detection and classification, embedded system based and web based monitoring based on compact microprocessor [4-10]have been designed. But they have assumed their devices to be balanced and in phase with the supply voltages after compens ...
... Recently power quality monitoring techniques such as real time detection and classification, embedded system based and web based monitoring based on compact microprocessor [4-10]have been designed. But they have assumed their devices to be balanced and in phase with the supply voltages after compens ...
design_review
... control signal (ASDI) to the serial programming device to read out configuration data. I/O Bank 2 accepts LVDS waveform data from the AFE. A 100Ω resistor is connected between the positive and negative leads of the differential signal as recommended by Altera for signal stability. 25Ω pull-up and pu ...
... control signal (ASDI) to the serial programming device to read out configuration data. I/O Bank 2 accepts LVDS waveform data from the AFE. A 100Ω resistor is connected between the positive and negative leads of the differential signal as recommended by Altera for signal stability. 25Ω pull-up and pu ...
Toyota Wiring Diagram Symbols
... Base − The center layer of semiconductor material in a transistor. Battery − A group of two or more cells of a lead−acid (storage) battery connected together. It produces an electric current by converting chemical energy into electrical energy. Also, a dry cell. Battery Acid − Mixture of sulfuric ac ...
... Base − The center layer of semiconductor material in a transistor. Battery − A group of two or more cells of a lead−acid (storage) battery connected together. It produces an electric current by converting chemical energy into electrical energy. Also, a dry cell. Battery Acid − Mixture of sulfuric ac ...
Redundant safety features in a high-channel-count retinal neurostimulator Shawn K. Kelly
... A. Electrode Polarization Monitoring and Shorting The ASIC includes two electrode voltage monitors for each current driver. A functional schematic of the voltage monitor circuits is shown in Figure 6. The monitors check the electrode polarization at two different points in time, during the interphas ...
... A. Electrode Polarization Monitoring and Shorting The ASIC includes two electrode voltage monitors for each current driver. A functional schematic of the voltage monitor circuits is shown in Figure 6. The monitors check the electrode polarization at two different points in time, during the interphas ...
555 circuits zamanlayıcı entegresi ile 50 adet basit devre
... Sources up to 200mA but sinks only 50mA A NE555 was tested at 1kHz, 12.75v rail and 39R load. The Results: Output voltage 0.5v low, 11.5v high at output current of 180mA The "test chip" performance was excellent. ...
... Sources up to 200mA but sinks only 50mA A NE555 was tested at 1kHz, 12.75v rail and 39R load. The Results: Output voltage 0.5v low, 11.5v high at output current of 180mA The "test chip" performance was excellent. ...
A Bi-Polar Triple-Output Converter with Duty Cycle Estimation
... inductor multi-output DC-DC converters were developed to effectively reduce the hardware required for providing multiple output voltages. The converters provide more than one output while requiring only one inductor and this helps in saving board space and reducing the overall cost. Multi-output con ...
... inductor multi-output DC-DC converters were developed to effectively reduce the hardware required for providing multiple output voltages. The converters provide more than one output while requiring only one inductor and this helps in saving board space and reducing the overall cost. Multi-output con ...
DAC7724 数据资料 dataSheet 下载
... NOTES: (1) If VSS = 0V, specification applies at code 004H and above. (2) LSB means Least Significant Bit, when VREFH equals +10V and VREFL equals 0V, then one LSB equals 2.44mV. (3) All DAC outputs will match within the specified error band. (4) Ideal output voltage, does not take into account zero ...
... NOTES: (1) If VSS = 0V, specification applies at code 004H and above. (2) LSB means Least Significant Bit, when VREFH equals +10V and VREFL equals 0V, then one LSB equals 2.44mV. (3) All DAC outputs will match within the specified error band. (4) Ideal output voltage, does not take into account zero ...
555-Page 1 for CD users: 555-Page 1 555-Page 2 555
... Sources up to 200mA but sinks only 50mA A NE555 was tested at 1kHz, 12.75v rail and 39R load. The Results: Output voltage 0.5v low, 11.5v high at output current of 180mA The "test chip" performance was excellent. ...
... Sources up to 200mA but sinks only 50mA A NE555 was tested at 1kHz, 12.75v rail and 39R load. The Results: Output voltage 0.5v low, 11.5v high at output current of 180mA The "test chip" performance was excellent. ...
Displacement currents in semiconductor quantum dots embedded
... also obtaining electronic contacts to Qds would not be an easy task. The photoconductive detectors, where the Qds are homogeneously impregnated into a solid substrate, avoid the above problem. In this letter we show that by embedding Qds in a film of high dielectric material to form a capacitor, the ...
... also obtaining electronic contacts to Qds would not be an easy task. The photoconductive detectors, where the Qds are homogeneously impregnated into a solid substrate, avoid the above problem. In this letter we show that by embedding Qds in a film of high dielectric material to form a capacitor, the ...
Electric current
... Since the current was increased, according to Ohm’s law the resistance must have been reduced Adding resistors in a parallel circuit decreases the total resistance to the flow of electricity ...
... Since the current was increased, according to Ohm’s law the resistance must have been reduced Adding resistors in a parallel circuit decreases the total resistance to the flow of electricity ...
NDM2Z-12V
... output ramp voltage to track the ramp of a reference voltage which is applied to the VTRK pin. The voltage ramp tracking capability can be configured so that member modules track at either 50% or 100% of the reference voltage ramp rate. In addition, a member module can be configured so that the term ...
... output ramp voltage to track the ramp of a reference voltage which is applied to the VTRK pin. The voltage ramp tracking capability can be configured so that member modules track at either 50% or 100% of the reference voltage ramp rate. In addition, a member module can be configured so that the term ...
Mehedi Hasan Tusher
... converters. The dc-dc converter inputs an unregulated dc voltage input and outputs a constant or regulated voltage. The regulators can be mainly classified into linear and switching regulators. All regulators have a power transfer stage and a control circuitry to sense the output voltage and adjust ...
... converters. The dc-dc converter inputs an unregulated dc voltage input and outputs a constant or regulated voltage. The regulators can be mainly classified into linear and switching regulators. All regulators have a power transfer stage and a control circuitry to sense the output voltage and adjust ...
BC857BLP4 Features Mechanical Data
... Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically n ...
... Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically n ...
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.