Curva de Potência de Turbinas Eólicas
... According to IEEE Std. 519-1992 [7], the main effect of harmonic voltage and current in rotating machines is overheating due to core loss and copper loss. The harmonic content reduces machine efficiency. As a reference, IEEE Std. 519-1992 says that overheating due to harmonics typically decrease eff ...
... According to IEEE Std. 519-1992 [7], the main effect of harmonic voltage and current in rotating machines is overheating due to core loss and copper loss. The harmonic content reduces machine efficiency. As a reference, IEEE Std. 519-1992 says that overheating due to harmonics typically decrease eff ...
RA60H1317M 数据资料DataSheet下载
... high load VSWR approaching an open or short, an over load condition could occur. In the worst case there is risk for burn out of the transistors and burning of other parts including the substrate in the module. 6.The formal specification includes a guarantee against parasitic oscillation under a spe ...
... high load VSWR approaching an open or short, an over load condition could occur. In the worst case there is risk for burn out of the transistors and burning of other parts including the substrate in the module. 6.The formal specification includes a guarantee against parasitic oscillation under a spe ...
soundroom
... The Aguilar DB 750 is a hybrid head; it combines an all-tube preamp with a solid-state power amp. All of the preamp functions, including the effect loop and DI circuitry, are tube powered. The DI features a Jensen transformer comparable to those used in expensive DI boxes. To ensure dependable opera ...
... The Aguilar DB 750 is a hybrid head; it combines an all-tube preamp with a solid-state power amp. All of the preamp functions, including the effect loop and DI circuitry, are tube powered. The DI features a Jensen transformer comparable to those used in expensive DI boxes. To ensure dependable opera ...
... maladjustment of Vio will have much more effect on V0 . Adjust the variable resistor to see how close you can get V0 to zero. It should not be necessary to readjust the null because V0 = ∓0.1V is satisfactory for the rest of this experiment. B. AC Limitations The non-inverting amplifier form will be ...
Low Power DC/DC Boost Converter in SOT-23
... The TPS6104x operates with an input voltage range of 1.8 V to 6 V and can generate output voltages up to 28 V. The device operates in a pulse-frequency-modulation (PFM) scheme with constant peak current control. This control scheme maintains high efficiency over the entire load current range, and wi ...
... The TPS6104x operates with an input voltage range of 1.8 V to 6 V and can generate output voltages up to 28 V. The device operates in a pulse-frequency-modulation (PFM) scheme with constant peak current control. This control scheme maintains high efficiency over the entire load current range, and wi ...
Speed control of wound rotor induction motors by AC regulator
... improvement in efficiency only helps in cases for which the magnitude of the lcad or rotor current is less than the magnetizing or no load current. For any torque drawing a rotor current more than the no load current, the voltage reduction does not provide any improvement in efficiency. However, it ...
... improvement in efficiency only helps in cases for which the magnitude of the lcad or rotor current is less than the magnetizing or no load current. For any torque drawing a rotor current more than the no load current, the voltage reduction does not provide any improvement in efficiency. However, it ...
Datasheet - Diodes Incorporated
... The ZR4040-5.0 uses a bandgap circuit design to achieve a precision micropower voltage reference of 5.0 volts. The device is available in a small outline surface mount package, ideal for applications where space saving is important, as well as packages for through hole requirements. ...
... The ZR4040-5.0 uses a bandgap circuit design to achieve a precision micropower voltage reference of 5.0 volts. The device is available in a small outline surface mount package, ideal for applications where space saving is important, as well as packages for through hole requirements. ...
Herbert Stemmler
... CSIs) are the most commonly used basic circuits for large drives. They are simple and easy to build for high-power applications. With regard to their characteristics they, however, are inferior: When implemented at the mains side they draw a 120° square wave current, which lags the voltage by 0° to ...
... CSIs) are the most commonly used basic circuits for large drives. They are simple and easy to build for high-power applications. With regard to their characteristics they, however, are inferior: When implemented at the mains side they draw a 120° square wave current, which lags the voltage by 0° to ...
Amplifiers
... integrates full quad-band GSM/GPRS PA function on a single IC using mainstream silicon CMOS process technology. All of the functions between transmitter output and transmit/receive switch are integrated in 0.13 μm silicon CMOS process technology. The AX502 amplifies low-level radiofrequency (RF) sign ...
... integrates full quad-band GSM/GPRS PA function on a single IC using mainstream silicon CMOS process technology. All of the functions between transmitter output and transmit/receive switch are integrated in 0.13 μm silicon CMOS process technology. The AX502 amplifies low-level radiofrequency (RF) sign ...
App Note 101 rev1p2 - Panson Audio Laboratories
... R9 and R10 of the driver board (see Fig. 3). We suggest using a 500Ω pot at R6 on driver board to allow bias adjustment for better, say, THD performance. Q1 of driver board is not needed in this case. ...
... R9 and R10 of the driver board (see Fig. 3). We suggest using a 500Ω pot at R6 on driver board to allow bias adjustment for better, say, THD performance. Q1 of driver board is not needed in this case. ...
Application of 60 Hz rated medium voltage vacuum circuit
... 50 Hz. If tests are made outside this frequency range (for example, 50 Hz) these may be considered to prove the characteristics at 60 Hz provided that the instantaneous recovery voltage across the current interrupting contacts of the circuit breaker, during the first 8.33 milliseconds, is not less t ...
... 50 Hz. If tests are made outside this frequency range (for example, 50 Hz) these may be considered to prove the characteristics at 60 Hz provided that the instantaneous recovery voltage across the current interrupting contacts of the circuit breaker, during the first 8.33 milliseconds, is not less t ...
Single and Three Phase AC or DC Power Testing Simplified
... limits. If all selected measurements pass, the output proceeds to the next test step once the programmed dwell time has expired. If not, an alarm sounds and the power to the EUT is cut. This mode is ideal for production test and pass fail testing without the need to develop test software. ...
... limits. If all selected measurements pass, the output proceeds to the next test step once the programmed dwell time has expired. If not, an alarm sounds and the power to the EUT is cut. This mode is ideal for production test and pass fail testing without the need to develop test software. ...
PSpice with Cadence
... Place voltage markers on each side of the resistor. Name the nodes Vin and Vout. Run the simulation and the results window should appear. Click the Toggle Cursor button and left click the colored dot for Vout in the legend. Use the mouse to drag the cursor over to the second peak of Vout and note t ...
... Place voltage markers on each side of the resistor. Name the nodes Vin and Vout. Run the simulation and the results window should appear. Click the Toggle Cursor button and left click the colored dot for Vout in the legend. Use the mouse to drag the cursor over to the second peak of Vout and note t ...
lab sheet - Faculty of Engineering
... 2) Oscilloscope settings: You must use VOLTS/DIV and TIME/DIV values as mentioned in each part, if any. Channel POSITION must be put at one of the vertical major grid position. Set AC/GND/DC input coupling switches at DC. Make sure the VARIABLE knobs for CH1, CH2 and time base at the CAL positions. ...
... 2) Oscilloscope settings: You must use VOLTS/DIV and TIME/DIV values as mentioned in each part, if any. Channel POSITION must be put at one of the vertical major grid position. Set AC/GND/DC input coupling switches at DC. Make sure the VARIABLE knobs for CH1, CH2 and time base at the CAL positions. ...
Academic paper: A High Voltage Gain DC
... Figure 2 shows the schematic diagram of the high voltage gain DC-DC boost converter for PV cell applications. The equivalent circuit of the coupled inductor includes the magnetizing inductor Lm, leakage inductors Lk1 and Lk2 and an ideal transformer. Other components of this converter are a dc input ...
... Figure 2 shows the schematic diagram of the high voltage gain DC-DC boost converter for PV cell applications. The equivalent circuit of the coupled inductor includes the magnetizing inductor Lm, leakage inductors Lk1 and Lk2 and an ideal transformer. Other components of this converter are a dc input ...
Open-Winding Power Conversion Systems Fed by Half
... [23] respectively, and their potential as a lower VA rating faulttolerant controlled rectifier was explored in [24]–[28]. The HCC also has found application as open-winding permanent magnet synchronous generator (PMSG) drives [29]. A system with a HCC-fed open-winding configuration combines some fea ...
... [23] respectively, and their potential as a lower VA rating faulttolerant controlled rectifier was explored in [24]–[28]. The HCC also has found application as open-winding permanent magnet synchronous generator (PMSG) drives [29]. A system with a HCC-fed open-winding configuration combines some fea ...
Circuit Challenges Electrical Engineer
... engineer for the Southern Interior region of B.C. Hydro. "I use math for power calculations, figuring out the load on circuits, and determining several factors involved in a power system," he says. The simplest calculations may be completed with a calculator, while computer programs are used in more ...
... engineer for the Southern Interior region of B.C. Hydro. "I use math for power calculations, figuring out the load on circuits, and determining several factors involved in a power system," he says. The simplest calculations may be completed with a calculator, while computer programs are used in more ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.