Supplemental Material
... frequency. When using a lock-in amplifier to fulfill this task, the Fig. R1 shows its block diagram. It can be seen that it needs two channels of the multiplier and the low pass filter, which must have the exactly same properties. If the properties of the two channels were mismatch, the performance ...
... frequency. When using a lock-in amplifier to fulfill this task, the Fig. R1 shows its block diagram. It can be seen that it needs two channels of the multiplier and the low pass filter, which must have the exactly same properties. If the properties of the two channels were mismatch, the performance ...
Disconnect Switches
... maintenance purposes, transfer load from one source to another in planned or emergency conditions, provide visual openings for maintenance personnel, and other reasons. • Disconnect switches usually have low current interrupting ratings compared to circuit breakers. • Normally, power lines are first ...
... maintenance purposes, transfer load from one source to another in planned or emergency conditions, provide visual openings for maintenance personnel, and other reasons. • Disconnect switches usually have low current interrupting ratings compared to circuit breakers. • Normally, power lines are first ...
designs
... This unique push-pull/parallel circuit produces a power output of four devices without the added loss and cost of power splitters and combiners. Motorola MRF150 RF power FET makes it possible to parallel two or more devices at relatively high power levels. This technique is considered impractical fo ...
... This unique push-pull/parallel circuit produces a power output of four devices without the added loss and cost of power splitters and combiners. Motorola MRF150 RF power FET makes it possible to parallel two or more devices at relatively high power levels. This technique is considered impractical fo ...
Riotech Instruments Ltd LLP
... Choosing 4-20mA output units: If the VTU1X-102 is to be used in a fixed speed application, there is little difference in the choice for correlating output amount to units. A 10% change in vibrational energy will correspond to a 10% change in units change in whatever units are selected. If the VTU1X- ...
... Choosing 4-20mA output units: If the VTU1X-102 is to be used in a fixed speed application, there is little difference in the choice for correlating output amount to units. A 10% change in vibrational energy will correspond to a 10% change in units change in whatever units are selected. If the VTU1X- ...
TIP120/TIP121/TIP122 NPN Epitaxial Darlington Transistor T IP
... SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: ...
... SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: ...
The following demo shows how to utilize the wattmeter instrument. In
... The following demo shows how to utilize the wattmeter instrument. In the DC case, it will measure DC power dissipated. Later on in the AC case, it can be used to measure average power. Let’s first assemble the circuit which is shown in Figure 2.4.1 below. It consists of a 15 V DC supply and two resi ...
... The following demo shows how to utilize the wattmeter instrument. In the DC case, it will measure DC power dissipated. Later on in the AC case, it can be used to measure average power. Let’s first assemble the circuit which is shown in Figure 2.4.1 below. It consists of a 15 V DC supply and two resi ...
Evaluates: MAX1748/MAX1779 MAX1748 Evaluation Kit General Description Features
... and tested surface-mount circuit board that contains a boost switching regulator and two charge-pump voltage-regulator circuits. The boost switching circuit is configured for a +10V output that provides up to 200mA of current from a supply voltage of +2.7V to +5.5V. The positive charge-pump circuit ...
... and tested surface-mount circuit board that contains a boost switching regulator and two charge-pump voltage-regulator circuits. The boost switching circuit is configured for a +10V output that provides up to 200mA of current from a supply voltage of +2.7V to +5.5V. The positive charge-pump circuit ...
Finisar HFE4083-322 Product Specification
... all the performance advantages of the VCSEL with a custom designed power monitor diode. The power monitor diode can be used with appropriate feedback control circuitry to set a maximum power level for each VCSEL. These combined features simplify design for high data rate communication and eye safety ...
... all the performance advantages of the VCSEL with a custom designed power monitor diode. The power monitor diode can be used with appropriate feedback control circuitry to set a maximum power level for each VCSEL. These combined features simplify design for high data rate communication and eye safety ...
Dia 1 - XAMK Moodle
... A Residual Current Device (RCD) is a circuit protection device which disconnects the load ("trips") if the current flowing out in the live wire exceeds the current returning in the neutral by a given amount. (Typically 30mA, 100mA, 300mA, depending on the device). 30mA = 0.03A This imbalance in the ...
... A Residual Current Device (RCD) is a circuit protection device which disconnects the load ("trips") if the current flowing out in the live wire exceeds the current returning in the neutral by a given amount. (Typically 30mA, 100mA, 300mA, depending on the device). 30mA = 0.03A This imbalance in the ...
radio, television and electronics works
... There will be three papers, Papers 1, 2 and 3, all of which must be taken. Papers 1 and 2 shall be a composite paper to be taken at one sitting. PAPER 1: will consist of forty multiple-choice objective questions, all of which are to be answered in 45 minutes for 40 marks. PAPER 2: will consist of si ...
... There will be three papers, Papers 1, 2 and 3, all of which must be taken. Papers 1 and 2 shall be a composite paper to be taken at one sitting. PAPER 1: will consist of forty multiple-choice objective questions, all of which are to be answered in 45 minutes for 40 marks. PAPER 2: will consist of si ...
Safety Switching Devices Basic device for Emergency-Stop
... The Device is a single-channel safety switching device for emergency stop equipment conforming to EN 60204-1, with self-monitoring on each ON-OFF cycle and positively driven relays. The device has two reset inputs, Y2 (without reset monitoring) and Y3 (with reset monitoring). The two relays, K1 and ...
... The Device is a single-channel safety switching device for emergency stop equipment conforming to EN 60204-1, with self-monitoring on each ON-OFF cycle and positively driven relays. The device has two reset inputs, Y2 (without reset monitoring) and Y3 (with reset monitoring). The two relays, K1 and ...
operating instructions
... Pins 2 and 3 carry the input as a differential signal; their polarity can be reversed with the input polarity switch on the user panel. If the switch is in the up position, pin 2 is hot relative to pin 3, resulting in a positive pressure wave when a positive signal is applied to pin 2. Use standard ...
... Pins 2 and 3 carry the input as a differential signal; their polarity can be reversed with the input polarity switch on the user panel. If the switch is in the up position, pin 2 is hot relative to pin 3, resulting in a positive pressure wave when a positive signal is applied to pin 2. Use standard ...
File lm1203 | allcomponents.ru
... VCC 2 is dependent upon the video output emitter pull down load. In applications that require video amplifier shut down because of fault conditions detected by monitor protection circuits, pin 11 and the wiper arms of the contrast and brightness controls can be grounded without harming the IC. This ...
... VCC 2 is dependent upon the video output emitter pull down load. In applications that require video amplifier shut down because of fault conditions detected by monitor protection circuits, pin 11 and the wiper arms of the contrast and brightness controls can be grounded without harming the IC. This ...
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.