AD8005
... to create an extra delay in the feedback path. This reduces circuit stability, and can cause unwanted ringing and oscillation. A given value of capacitance causes much less ringing when the amplifier is used with a higher noise gain. The capacitive load drive of the AD8005 can be increased by adding ...
... to create an extra delay in the feedback path. This reduces circuit stability, and can cause unwanted ringing and oscillation. A given value of capacitance causes much less ringing when the amplifier is used with a higher noise gain. The capacitive load drive of the AD8005 can be increased by adding ...
10-Bit, 40MHz, Current/Voltage-Output DACs General Description Features
... IFS = 8 IREF where I REF is the reference output current (I REF = VREFO/RSET) and IFS is the full-scale output current. R SET is the reference resistor that determines the amplifier’s output current on the MAX5181 (Figure 2). This current is mirrored into the current source array, where it is equa ...
... IFS = 8 IREF where I REF is the reference output current (I REF = VREFO/RSET) and IFS is the full-scale output current. R SET is the reference resistor that determines the amplifier’s output current on the MAX5181 (Figure 2). This current is mirrored into the current source array, where it is equa ...
a Quad 3000 V/ Current Feedback Amplifier AD8004
... 30 MHz while offering differential gain and phase error of 0.04% and 0.10∞. This makes the AD8004 suitable for video electronics such as cameras and video switchers. The AD8004 offers low power of 3.5 mA/amplifier and can run on a single +4 V to +12 V power supply, while being capable of delivering ...
... 30 MHz while offering differential gain and phase error of 0.04% and 0.10∞. This makes the AD8004 suitable for video electronics such as cameras and video switchers. The AD8004 offers low power of 3.5 mA/amplifier and can run on a single +4 V to +12 V power supply, while being capable of delivering ...
Zo: Transmission Lines, Reflections, and Termination
... times of the signals that they carry, we must treat wires not as zero-delay, perfect conductors, but as the “transmission lines” that they really are. Transmission-line behavior includes signal changes that would not be predicted by a “DC” analysis of circuit operation. The most significant changes ...
... times of the signals that they carry, we must treat wires not as zero-delay, perfect conductors, but as the “transmission lines” that they really are. Transmission-line behavior includes signal changes that would not be predicted by a “DC” analysis of circuit operation. The most significant changes ...
Voltage Sag Ride Through Mitigation
... contactors and relays are readily available. A DC contactor or relay is stronger because the flux is constant. A rectifier is required to change AC to DC. A small storage capacitor could be added to DC contactor to extend ride-through energy. Disadvantage of DC is increased arcing due to lack of zer ...
... contactors and relays are readily available. A DC contactor or relay is stronger because the flux is constant. A rectifier is required to change AC to DC. A small storage capacitor could be added to DC contactor to extend ride-through energy. Disadvantage of DC is increased arcing due to lack of zer ...
THE FRANCK-HERTZ EXPERIMENT
... contribute to the current I in the external circuit, which is read by an ammeter. The experimental chamber is filled with mercury gas. If we increase the value of VFG until the electrons have just enough kinetic energy to transfer energy to the Hg atoms in inelastic collisions, the scattered electro ...
... contribute to the current I in the external circuit, which is read by an ammeter. The experimental chamber is filled with mercury gas. If we increase the value of VFG until the electrons have just enough kinetic energy to transfer energy to the Hg atoms in inelastic collisions, the scattered electro ...
CIRCUIT THEORY EE1404 LABORATORY TASKS
... The final task presents a design problem that you are to solve. You are required to design a circuit that provides an adjustable voltage. The specifications for this circuit are: ...
... The final task presents a design problem that you are to solve. You are required to design a circuit that provides an adjustable voltage. The specifications for this circuit are: ...
Internal Resistance
... INTERNAL RESISTANCE As a concept, this is slightly tricky to grasp, but not impossible. Although we normally deal with resistors having resistance, and light-bulbs and a whole host of other components having resistance too, it’s important to recognise that the connecting wires in circuits also provi ...
... INTERNAL RESISTANCE As a concept, this is slightly tricky to grasp, but not impossible. Although we normally deal with resistors having resistance, and light-bulbs and a whole host of other components having resistance too, it’s important to recognise that the connecting wires in circuits also provi ...
LED Info - KWH Energy Solutions
... testing procedures. The life of an LED is defined as the operating time in hours for the lamp to reach L70 which designates 70% lumen maintenance (or 30% reduction in initial light output). Every lamp type has a unique mortality curve that depicts its average rated life. Ballast The ballast is an au ...
... testing procedures. The life of an LED is defined as the operating time in hours for the lamp to reach L70 which designates 70% lumen maintenance (or 30% reduction in initial light output). Every lamp type has a unique mortality curve that depicts its average rated life. Ballast The ballast is an au ...
DPSS ECS Replacement - Schedules AB
... Where there is insufficient space provided in Schedule B, particulars must be furnished on a separate sheet marked with the number of the Schedule A and item referred to. Where the Contractor does not comply with the Employer’s requirements in the Works Info or Schedules A&B, these deviations must b ...
... Where there is insufficient space provided in Schedule B, particulars must be furnished on a separate sheet marked with the number of the Schedule A and item referred to. Where the Contractor does not comply with the Employer’s requirements in the Works Info or Schedules A&B, these deviations must b ...
site planning data-liebert® exm™ 3-phase ups: 50-250kva
... • If site configuration includes an automatic transfer switch, refer to Liebert Power Line titled “Criteria for Application of Automatic Transfer Switches (ATS) With Uninterruptible Power Supply (UPS) Systems,” publication 91K-PLT-48-02. It is also recommended that the transfer switch be equipped wi ...
... • If site configuration includes an automatic transfer switch, refer to Liebert Power Line titled “Criteria for Application of Automatic Transfer Switches (ATS) With Uninterruptible Power Supply (UPS) Systems,” publication 91K-PLT-48-02. It is also recommended that the transfer switch be equipped wi ...
parallel connected inverter for fuel cell system
... inverter has the abilities of controllable power factor, sinusoidal output currents and bi-directional power transfer. [3][4] The third harmonic injection method to control the power factor of the inverter output current used for three-phase inverter. However, it is very difficult to generate the ri ...
... inverter has the abilities of controllable power factor, sinusoidal output currents and bi-directional power transfer. [3][4] The third harmonic injection method to control the power factor of the inverter output current used for three-phase inverter. However, it is very difficult to generate the ri ...
emt 212 ch.6_power supply (voltage regulator)
... regulators are available in integrated circuit (IC) form. Single IC regulators contain the circuitry for: (1) reference source, (2) comparator amplifier, (3) control device, and; (4) overload protection. Generally, the linear regulators are three-terminal devices that provides either positive or neg ...
... regulators are available in integrated circuit (IC) form. Single IC regulators contain the circuitry for: (1) reference source, (2) comparator amplifier, (3) control device, and; (4) overload protection. Generally, the linear regulators are three-terminal devices that provides either positive or neg ...
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.