Surge Current Protection Using Super Conductors Report New
... diameter of the filament is on the order of 0.1µm and they are decoupled by a highly resistive, normal conducting matrix, which also serves as thermal stabilization. Since any magnetic field interacts only with the very thin and decoupled filaments, the ac losses in the materials are tolerable even ...
... diameter of the filament is on the order of 0.1µm and they are decoupled by a highly resistive, normal conducting matrix, which also serves as thermal stabilization. Since any magnetic field interacts only with the very thin and decoupled filaments, the ac losses in the materials are tolerable even ...
Exterminating Common Bugs With Little-Known
... dump of just the essential information required to get started with the new Stamp. Because of some major improvements in PBASIC’s structure, the BS2 dialect is not backwardly compatible with the BS1. One change that’s causing headaches for users who are accustomed to the BS1 is the new role of paren ...
... dump of just the essential information required to get started with the new Stamp. Because of some major improvements in PBASIC’s structure, the BS2 dialect is not backwardly compatible with the BS1. One change that’s causing headaches for users who are accustomed to the BS1 is the new role of paren ...
A Novel-Class AB Transconductor suitable for High Speed CMOS Operational Amplifier
... [1-2]. For class-A circuit, a maximum output current is limited by bias current. On the contrary, class-AB input stage can provide the output current much higher than its bias current. So, in high speed application, the class-AB input stage has an advantage. Various structures of class-AB op-amps ha ...
... [1-2]. For class-A circuit, a maximum output current is limited by bias current. On the contrary, class-AB input stage can provide the output current much higher than its bias current. So, in high speed application, the class-AB input stage has an advantage. Various structures of class-AB op-amps ha ...
Lab E7: The Wheatstone Bridge
... the bridge to less than 1A. (Higher currents might over-heat components of the bridge.) The rechargeable battery lasts only 6 hours when connected to the bridge, so please remember to disconnect it when done. The known resistor Rk is adjustable and can be set to any value from 1 to 999 in 1 steps ...
... the bridge to less than 1A. (Higher currents might over-heat components of the bridge.) The rechargeable battery lasts only 6 hours when connected to the bridge, so please remember to disconnect it when done. The known resistor Rk is adjustable and can be set to any value from 1 to 999 in 1 steps ...
ZL40813 13.5GHz Fixed Modulus Dividers Data Sheet
... Dummy R source may be added to the inverting input to provide a better matched source impedance at the input. This will improve the rejection of common mode noise present within the system. Dummy R load may be added to the inverting output to provide better matched load at the output. This will redu ...
... Dummy R source may be added to the inverting input to provide a better matched source impedance at the input. This will improve the rejection of common mode noise present within the system. Dummy R load may be added to the inverting output to provide better matched load at the output. This will redu ...
Simulation of a “Giannini True Reverber” vacuum
... parameters [Pakarinen and Yeh, 2009]. As far as amplifier simulation is concerned, the models must be categorized as either linear or nonlinear since analog amplifiers have corresponding linear circuits (RC or LCR filters) and nonlinear circuit elements (transistors, operational amplifiers, diodes a ...
... parameters [Pakarinen and Yeh, 2009]. As far as amplifier simulation is concerned, the models must be categorized as either linear or nonlinear since analog amplifiers have corresponding linear circuits (RC or LCR filters) and nonlinear circuit elements (transistors, operational amplifiers, diodes a ...
Single 8-channel analog MUX/DEMUX with injection current protection
... 1. For voltage drops across the switch greater than 1.2 V (switch on), excessive VCC current may be drawn; i.e., the current out of the switch may contain both V CC and switch input components. The reliability of the device is unaffected unless the maximum ratings are exceeded. 2. VIN from 30% to 70 ...
... 1. For voltage drops across the switch greater than 1.2 V (switch on), excessive VCC current may be drawn; i.e., the current out of the switch may contain both V CC and switch input components. The reliability of the device is unaffected unless the maximum ratings are exceeded. 2. VIN from 30% to 70 ...
E f
... is its rotation speed. Since flux in the machine depends on the field current through it, the internal generated voltage is a function of the rotor field current. Magnetization curve (open-circuit characteristic) of a synchronous machine ...
... is its rotation speed. Since flux in the machine depends on the field current through it, the internal generated voltage is a function of the rotor field current. Magnetization curve (open-circuit characteristic) of a synchronous machine ...
Half stepping techniques
... However a disadvantage with half-step drive is a significant torque variation. The reason is the torque in onephase-on positions is about 70% of the two-phase-on positions’ torque. This variation can cause vibrations and/or mechanical noise, though less than in full-step drive mode. Modified half st ...
... However a disadvantage with half-step drive is a significant torque variation. The reason is the torque in onephase-on positions is about 70% of the two-phase-on positions’ torque. This variation can cause vibrations and/or mechanical noise, though less than in full-step drive mode. Modified half st ...
Analog Dialogue Volume 47, Number 2, 2013
... TIA/EIA-485-A describes the physical layer of the RS-485 interface and is normally used with a higher-level protocol, such as Profibus, Interbus, Modbus, or BACnet. This allows for robust data transmission over relatively long distances. In real applications, however, lightning strikes, power induct ...
... TIA/EIA-485-A describes the physical layer of the RS-485 interface and is normally used with a higher-level protocol, such as Profibus, Interbus, Modbus, or BACnet. This allows for robust data transmission over relatively long distances. In real applications, however, lightning strikes, power induct ...
CASE STUDY 4 Background A worker received a fatal electric shock
... b. the insulation on the handle of the welding electrode holder was damaged; c. the voltage measured between the exposed metallic parts of the welding electrode holder and the metal structure where the welding work was carried ...
... b. the insulation on the handle of the welding electrode holder was damaged; c. the voltage measured between the exposed metallic parts of the welding electrode holder and the metal structure where the welding work was carried ...
TPS40060 Wide Input Synchronous Buck
... The TPS40061 is the controller of choice for synchronous buck designs which will include most applications. It has two quadrant operation and will source or sink output current. This provides the best transient response. The TPS40060 operates in one quadrant and sources output current only, allowing ...
... The TPS40061 is the controller of choice for synchronous buck designs which will include most applications. It has two quadrant operation and will source or sink output current. This provides the best transient response. The TPS40060 operates in one quadrant and sources output current only, allowing ...
15 Single-phase series ac circuits
... 40 D 8 V The phasor diagram is shown in Figure 15.7(b). (Note that in a.c. circuits, the supply voltage is not the arithmetic sum of the p.d.’s across components but the phasor sum) Problem 12. A coil of inductance 159.2 mH and resistance 20 is connected in series with a 60 resistor to a 240 V, ...
... 40 D 8 V The phasor diagram is shown in Figure 15.7(b). (Note that in a.c. circuits, the supply voltage is not the arithmetic sum of the p.d.’s across components but the phasor sum) Problem 12. A coil of inductance 159.2 mH and resistance 20 is connected in series with a 60 resistor to a 240 V, ...
Powerful, efficient, independent
... at 50 and 60 Hz. We can also test bus-transfer currents according to the latest requirements of IEC 62271-102. We also have a laboratory for basic research, where currents of up to 80 kA at 50/60 Hz can be generated by capacitor banks and synthetic voltages of up to 120 kV are available. This labora ...
... at 50 and 60 Hz. We can also test bus-transfer currents according to the latest requirements of IEC 62271-102. We also have a laboratory for basic research, where currents of up to 80 kA at 50/60 Hz can be generated by capacitor banks and synthetic voltages of up to 120 kV are available. This labora ...
PS9306L,PS9306L2 Data Sheet Preliminary
... (If the pattern needs to be close to the input block, to prevent the LED from lighting during the off state due to the abovementioned coupling, design the input-side circuit so that the bias of the LED is reversed, within the range of the recommended operating conditions, and be sure to thoroughly e ...
... (If the pattern needs to be close to the input block, to prevent the LED from lighting during the off state due to the abovementioned coupling, design the input-side circuit so that the bias of the LED is reversed, within the range of the recommended operating conditions, and be sure to thoroughly e ...
transistor
... around 300 MHz. Higher frequencies were better because they gave higher target resolution. With the invention of the magnetron in 1940 microwave transmitters (3,000 MHz) were possible. Receiving was another matter. Vacuum tubes could not be used at these frequencies because of the various parasitic ...
... around 300 MHz. Higher frequencies were better because they gave higher target resolution. With the invention of the magnetron in 1940 microwave transmitters (3,000 MHz) were possible. Receiving was another matter. Vacuum tubes could not be used at these frequencies because of the various parasitic ...
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.