2. Luminaire characteristics 1. Light source characteristics: Massive
... articles the mains supply, indicated with PRI) into an output AC voltage or current that is suitable for the luminaire. In most cases our transformers are SELV. The capacity of a transformer is indicated in Volt-Ampere (VA), which is equivalent to Watt. There are two types of transformers: ...
... articles the mains supply, indicated with PRI) into an output AC voltage or current that is suitable for the luminaire. In most cases our transformers are SELV. The capacity of a transformer is indicated in Volt-Ampere (VA), which is equivalent to Watt. There are two types of transformers: ...
Ohm`s Law Verification and Wheatstone Bridge
... Set the DC voltage supply to 10 Volts. Set the resistance R to 100 ohms. Measure the voltage across the resistor and the current through the resistor and write the results in Table 1. 5. Determine the value of the resistance using Ohm’s law R=V/I and record in the Table 1. 6. Repeat step 2 to 5 for ...
... Set the DC voltage supply to 10 Volts. Set the resistance R to 100 ohms. Measure the voltage across the resistor and the current through the resistor and write the results in Table 1. 5. Determine the value of the resistance using Ohm’s law R=V/I and record in the Table 1. 6. Repeat step 2 to 5 for ...
NA
... Figure 2 - 1F, 5.5V Coin Cell Leakage Current Comparison Not only does the KR series part have lower overall leakage current but it also reaches these low current levels very quickly. This allows maximum hold-up to be achieved even after a relatively short charge time. In conclusion, supercapacitors ...
... Figure 2 - 1F, 5.5V Coin Cell Leakage Current Comparison Not only does the KR series part have lower overall leakage current but it also reaches these low current levels very quickly. This allows maximum hold-up to be achieved even after a relatively short charge time. In conclusion, supercapacitors ...
2. Norton`s theorem
... Figure (b) shows Norton’s equivalent circuit as seen from the terminals a-b of the original circuit shown in Fig. (a). Since this is the dual of the Thevenin circuit, it is clear that Rt = Rn and IN =Voc / Rt. In fact, source transformation of Thevenin equivalent circuit leads to Norton’s equivalent ...
... Figure (b) shows Norton’s equivalent circuit as seen from the terminals a-b of the original circuit shown in Fig. (a). Since this is the dual of the Thevenin circuit, it is clear that Rt = Rn and IN =Voc / Rt. In fact, source transformation of Thevenin equivalent circuit leads to Norton’s equivalent ...
Worksheets for Unit 1 Electricity
... When a voltage is applied across a component, the amount of the current going through it depends on its physical properties. How the current changes as the voltage is increased, also depends on the particular component. Some components even respond differently, depending on which end is connected to ...
... When a voltage is applied across a component, the amount of the current going through it depends on its physical properties. How the current changes as the voltage is increased, also depends on the particular component. Some components even respond differently, depending on which end is connected to ...
ONEAC Powervar ONePlus Series
... • USB and RS232 communications ports: add flexibility • Low-impedance isolation transformer: provides the highest level of ...
... • USB and RS232 communications ports: add flexibility • Low-impedance isolation transformer: provides the highest level of ...
Amplifier Remote Control for Modal Exciter Systems
... • Remote Operation includes INPUT ISOLATION on AUDIO INPUT BNC’s (both DC and AC coupled inputs) which eliminates ground loops caused by widely separated amplifiers and PC that do not share common GROUNDs [NOTE: Voltage and current monitor output BNC’s should NOT be used in this mode!] • RTD inside ...
... • Remote Operation includes INPUT ISOLATION on AUDIO INPUT BNC’s (both DC and AC coupled inputs) which eliminates ground loops caused by widely separated amplifiers and PC that do not share common GROUNDs [NOTE: Voltage and current monitor output BNC’s should NOT be used in this mode!] • RTD inside ...
Budapest University of Technology and Economics
... order to reduce the size and production cost of the circuit the functions above are often integrated in the sensor's interface. By means of a smart design of the surrounding electronics, the requirements for the mechanical parts can be simplified. Several different architectures exist, the choice am ...
... order to reduce the size and production cost of the circuit the functions above are often integrated in the sensor's interface. By means of a smart design of the surrounding electronics, the requirements for the mechanical parts can be simplified. Several different architectures exist, the choice am ...
LAB#3 - SIUE
... When a transformer is in operation, AC currents flow in its windings and an alternating magnetic field is set-up in the iron core. As a result, copper and iron losses are produced which represents real power (Watts) and causes the transformer to heat up. Establishing a magnetic field requires reacti ...
... When a transformer is in operation, AC currents flow in its windings and an alternating magnetic field is set-up in the iron core. As a result, copper and iron losses are produced which represents real power (Watts) and causes the transformer to heat up. Establishing a magnetic field requires reacti ...
Instructions for muon lifetime experiment - CASE
... contact with a grounded, conductive pulley. Each charged link is then moved away from the pulley and becomes isolated, except for a very high resistance path back down the chain through the plastic insulators. The charged link is moved to the terminal where another conductive pulley receives the cha ...
... contact with a grounded, conductive pulley. Each charged link is then moved away from the pulley and becomes isolated, except for a very high resistance path back down the chain through the plastic insulators. The charged link is moved to the terminal where another conductive pulley receives the cha ...
02_ELC4345_Fall2013_Diode_Bridge_Rectifier_PPT
... Diode bridge off. Capacitor discharging into load. ...
... Diode bridge off. Capacitor discharging into load. ...
AD8429 英文数据手册DataSheet 下载
... demanding applications such as vibration analysis. Gain is set from 1 to 10,000 with a single resistor. A reference pin allows the user to offset the output voltage. This feature can ...
... demanding applications such as vibration analysis. Gain is set from 1 to 10,000 with a single resistor. A reference pin allows the user to offset the output voltage. This feature can ...
EBPLED Emergency Battery Packs
... illumination of an LED fixture for a minimum of 90 minutes. The product line is UL924 classified for field retrofit installation and has guaranteed compatibility with Eaton LED fixtures with accessible LED drivers. The constant power feature ensures consistent light output of the fixture for 90 minu ...
... illumination of an LED fixture for a minimum of 90 minutes. The product line is UL924 classified for field retrofit installation and has guaranteed compatibility with Eaton LED fixtures with accessible LED drivers. The constant power feature ensures consistent light output of the fixture for 90 minu ...
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.