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1 or 2Ø – High Performance AC Power Source 6,000VA 15
1 or 2Ø – High Performance AC Power Source 6,000VA 15

... 1. Rated output power is based on a combination of nominal output voltage, rated current and load power factor. Values stated represent the maximum capabilities of a given model. Consult factory for assistance in determining specific unit capabilities as they might apply to your application. 2. Unit ...
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... can be replaced with their equivalent, 12.0 W The 6.0-W and 3.0-W resistors are in parallel and can be replaced with their equivalent, 2.0 W These equivalent resistances are in series and can be replaced with their equivalent resistance, 14.0 W ...
Basic BJT Amplifier
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... If BJT with VBE=0.7 V is used, IB=9.5 μA & IC=0.95 mA But, if new BJT with VBE=0.6 V is used, IB=26 μA & BJT goes into saturation; which is not acceptable  Previous circuit is not practical So, the emitter resistor is included: Q-point is stabilized against variations in β, as will the voltage gain ...
MPS 751 Absolute Maximum Ratings
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... 1. These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. 2. These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations. 3. These ratings are based on a maximum junction temperatu ...
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... Here is 10 output LED sequencer. After the last LED is illuminated, the circuit is reset. This circuit is build around readily a low cost components - a 555 and decade counter CD4O1 7. The timer IC NE555 is wired as an astable multivibrator that produces 6Hz clock at its output pin 3. The 4017 is a ...
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... applications. The table shows the options available. The slow response settings may prove helpful in reducing lamp flicker. ...
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... as the control variable. The active region is defined where flat, horizontal portions of voltagecurrent curves show “constant” iC current, because the collector current does not change significantly with VCE for a given iB. Those portions are used only for small signal transistors operating as linea ...
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MAX8862, MAX8862L, MAX8862R, MAX8862T 双路高、低功率线性稳压器,封装在单一芯片,节省空间
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... adjusted between 2V and 11V with two external resistors connected as a voltage divider to SET1/SET2 (Figure 2). Since the input bias current at SET1/SET2 is <0.1µA, large resistance values can be used for R1 and R2 to minimize power consumption without losing accuracy. Select R2 in the 10kΩ to 400kΩ ...
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... transconductance. OTA has two attractive features: 1) changing the external dc bias current or voltage can control its transconductance, and 2) It can work at high frequencies. This paper focus on the MOS implementations of the transconductance amplifiers.OTA is a voltage controlled current source [ ...
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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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