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S270-20-2 (Discontinued)
S270-20-2 (Discontinued)

... Current flowing through the sectionalizer is sensed by the bushing-current transformers. Three transformers connected in a wye configuration sense phase currents. Another three bushing-current transformers connected in parallel sense the ground (earth) or zero-sequence current. These signals are rec ...
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FZT853 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 ...
74CBTLV3245 1. General description 8-bit bus switch with output enable
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a Complete 14-Bit, 3.0 MSPS Monolithic A/D Converter AD9243*
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... the AD9243 performs well in communication systems employing Direct-IF Down Conversion since the SHA in the differential input mode can achieve excellent dynamic performance well beyond its specified Nyquist frequency of 1.5 MHz. A single clock input is used to control all internal conversion cycles. ...
CI23521526
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AN-873 APPLICATION NOTE
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view EM-I Question Bank
view EM-I Question Bank

... delivrers a current of 100A. [L4] 10M 3.Explain the principle of operation of a D.C motor.Derive the equation for the torque developed by a D.C. motor?[L2] 10M 4.a)Distinguish between generator and motor action.Derive the equation for the back e.m.f of D.C motor?[L4] 5M b).A 220V shunt motor takes 6 ...
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ZX5T851G 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 ...
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bus ele ma iaei news june 2012 neeser

... equipment to be marked with the maximum available fault current, and to be remarked if modifications of the electrical installation resulted in an increase of the maximum available fault current. The intent of this change was to assure compliance with NEC 110.9 and 110.10 for service equipment (see ...
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... Uninterruptible power supply (UPS) is a typical example of voltage regulated inverter applications. It is widely used to supply high quality, continuous and disturbance-free AC power to critical loads such as medical equipments, computers and communication systems. A good UPS system requires not onl ...
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ZR285 Description Pin Assignment

... precision micropower voltage reference of 2.5 volts. The device is available in a small outline surface mount package, ideal for applications where space saving is important. The ZR285 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZR285 is re ...
ZX5T3Z
ZX5T3Z

... 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 ...
S280-77-10
S280-77-10

... In a five recloser loop, each feeder is divided into three portions of approximately equal load. The extent of outage can be reduced to 33% of that which would occur on a radial feeder. It operates as follows. A fault at F1 results in the lockout of 1A. The LS controls on reclosers 1B, 1C, and 1D se ...
lecture 250 – simulation and measurement of op amps
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... Circuit (Darkened op amp identifies the op amp under test): Simulation: VDD vIN +VOS vOUT This circuit will give the voltage transfer function curve. This curve should identify: 1.) The linear range of operation RL CL VSS 2.) The gain in the linear range 3.) The output limits Fig. 240-01 4.) The sys ...
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±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, General Description

... Operating Temperature Ranges MAX32_ _EC_ _ ...................................................0°C to +70°C MAX32_ _EE_ _.................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) ........... ...
BU21023GUL ,BU21023MUV
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A750 Series, 105°C

... stress during soldering. The leakage current may increase after soldering or reflow soldering. Therefore, do not use these capacitors in circuits sensitive to leakage current. • Do not use in a high resistance, high voltage circuit. • Do not use in a coupling circuit. • Do not use in a time const ...
Power Factor and Generators
Power Factor and Generators

... • Ability of a coil to store energy, induce a voltage in itself, and oppose changes in current flowing through it • Symbol used for inductance is L, Henries (H) are the units • One henry is amount of inductance (L) that permits one volt to be induced when current through coil changes at a rate of on ...
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4.5 Rectifier Circuits

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PCA9513A; PCA9514A 1. General description Hot swappable I

... SCLIN and SCLOUT become identical with each acting as a bidirectional buffer that isolates the input capacitance from the output bus capacitance while communicating the logic levels. A LOW forced on either SDAIN or SDAOUT will cause the other pin to be driven to a LOW by the part. The same is also t ...
AN94 - Slew Rate Verification for Wideband Amplifiers: The Taming of the Slew
AN94 - Slew Rate Verification for Wideband Amplifiers: The Taming of the Slew

... output. Figure 10 shows the output pulse (trace D) occurring 25ns before the trigger output. All other waveforms are identical to Figure 9. When C1’s output pulse is applied to Q5’s base, it avalanches. The result is a quickly rising pulse across Q5’s emitter termination resistor. The 10pF collector ...
SKY72300-21
SKY72300-21

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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.
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