In radio and television broadcasting (as well as in amateur radio) the
... is a simple ratio and can be mathematically represented as: SWR = Reverse Voltage / Forward Voltage In commercial broadcasting VSWR or Voltage Standing Wave Ratio is the most commonly used parameter. It reflects the quality of the impedance match of the transmission line to the antenna system or the ...
... is a simple ratio and can be mathematically represented as: SWR = Reverse Voltage / Forward Voltage In commercial broadcasting VSWR or Voltage Standing Wave Ratio is the most commonly used parameter. It reflects the quality of the impedance match of the transmission line to the antenna system or the ...
Multivibrator Circuits using the 555 Timer
... Make sure that the circuit generates the expected signals, namely vC2 triangular wave and vO - square wave. Visualize vR2 and find the value of I2. Visualize simultaneously vO and vC2. Adjust the potentiometers one by one to derive the effect of each of them on the output signals. Set the ...
... Make sure that the circuit generates the expected signals, namely vC2 triangular wave and vO - square wave. Visualize vR2 and find the value of I2. Visualize simultaneously vO and vC2. Adjust the potentiometers one by one to derive the effect of each of them on the output signals. Set the ...
transformers
... Rewrite the FALSE statements so they are TRUE. 1. Linear circuits are improved by using non-linear devices. T 2. Digital circuits use only digital effects. False. They are constructed from digital circuits among others 3. Heat dissipation lengthens the life of appliances. True 4. Noise is any type o ...
... Rewrite the FALSE statements so they are TRUE. 1. Linear circuits are improved by using non-linear devices. T 2. Digital circuits use only digital effects. False. They are constructed from digital circuits among others 3. Heat dissipation lengthens the life of appliances. True 4. Noise is any type o ...
Determining Relay Coil Inductance
... at rated voltage and current. Inductance with armature seated represents actual application conditions at the instant coil power is removed. When coil power is removed, the coil generates a counter voltage, -e = L(di/dt), which is fed back into the switch circuit. Depending on energy levels, this vo ...
... at rated voltage and current. Inductance with armature seated represents actual application conditions at the instant coil power is removed. When coil power is removed, the coil generates a counter voltage, -e = L(di/dt), which is fed back into the switch circuit. Depending on energy levels, this vo ...
Unique features of the proposed ZCS scheme - UIC
... support bi-directional power flow is an important factor for Navy and Defense from the standpoints of reduced-footprint-space, weight, labor cost, and mobility. The existing megawatt class converters usually operate at low switching frequency limited to about 1.2 kHz due to the limited turn on/off p ...
... support bi-directional power flow is an important factor for Navy and Defense from the standpoints of reduced-footprint-space, weight, labor cost, and mobility. The existing megawatt class converters usually operate at low switching frequency limited to about 1.2 kHz due to the limited turn on/off p ...
Lab-8, Measure Magnetic Field
... II. Magnetometer – Test the magnetometer circuit by moving the magnet quickly into the coil. You will need to discharge the capacitor occasionally. 1. Quickly insert then remove the high-field magnet into the coil several times, keeping it in or out for about 3 sec. You should see the voltage chang ...
... II. Magnetometer – Test the magnetometer circuit by moving the magnet quickly into the coil. You will need to discharge the capacitor occasionally. 1. Quickly insert then remove the high-field magnet into the coil several times, keeping it in or out for about 3 sec. You should see the voltage chang ...
EC6401-EC II -model exam
... List the different methods available for generation of Ramp waveforms. What is a blocking oscillator? ...
... List the different methods available for generation of Ramp waveforms. What is a blocking oscillator? ...
Charging Systems-General
... converts the three AC-phases to a single 14.4 VDC output, a ground and a positive. Because the stator is producing power according to the engine-speed the stator-output is too high all the time. This would mean the output voltage of the regulator-rectifier would be way over 14.4 VDC all the time, wh ...
... converts the three AC-phases to a single 14.4 VDC output, a ground and a positive. Because the stator is producing power according to the engine-speed the stator-output is too high all the time. This would mean the output voltage of the regulator-rectifier would be way over 14.4 VDC all the time, wh ...
V-Guard | Buying Guide for Voltage Stabilizers
... Voltage fluctuations are common and quiet high in our power lines. They harm your electrical appliances like television, refrigerator, air conditioner etc. and affect your valuable equipment critically, even leaving them in to a permanently damaged condition. A carefully selected, right kind of stab ...
... Voltage fluctuations are common and quiet high in our power lines. They harm your electrical appliances like television, refrigerator, air conditioner etc. and affect your valuable equipment critically, even leaving them in to a permanently damaged condition. A carefully selected, right kind of stab ...
Evaluates: MAX1982/MAX1983 MAX1982 Evaluation Kit General Description Features
... The MAX1982 has an active-low shutdown control input to enable/disable its output. The 3-pin header JU1 selects the shutdown mode. Remove the shunt when driving shutdown with an external signal. Table 1 lists the jumper selectable options. ...
... The MAX1982 has an active-low shutdown control input to enable/disable its output. The 3-pin header JU1 selects the shutdown mode. Remove the shunt when driving shutdown with an external signal. Table 1 lists the jumper selectable options. ...
Thyristors
... • Thermal triggering: In forward blocking state reverse leakage current is present , the magnitude of reverse leakage current increases with increase in temperature. This reverse leakage current can trigger conduction in SCR • Light triggering : LASCR(Light Activated SCR) • In this type of SCR , th ...
... • Thermal triggering: In forward blocking state reverse leakage current is present , the magnitude of reverse leakage current increases with increase in temperature. This reverse leakage current can trigger conduction in SCR • Light triggering : LASCR(Light Activated SCR) • In this type of SCR , th ...
What pMRI Scientists Want
... In essence, MRI is a process by which the nuclear insides of a test subject are turned into tiny magnets. A separate signal then perturbs these magnets which, upon removal of the perturbation, return to their starting position. During this process of relaxation a time varying magnetic flux is genera ...
... In essence, MRI is a process by which the nuclear insides of a test subject are turned into tiny magnets. A separate signal then perturbs these magnets which, upon removal of the perturbation, return to their starting position. During this process of relaxation a time varying magnetic flux is genera ...
The Effect of Power Factor On An Electrical System
... P.F. as shown in vector diagram (see diagram two) is the ratio of true power (shown as watts (W) amps x volts) to the apparent power (shown as VA amps x volts) flowing to the load in an alternating current (AC) system. Watts and VA are more commonly quoted in thousands as kW and kVA. kW and kVA in a ...
... P.F. as shown in vector diagram (see diagram two) is the ratio of true power (shown as watts (W) amps x volts) to the apparent power (shown as VA amps x volts) flowing to the load in an alternating current (AC) system. Watts and VA are more commonly quoted in thousands as kW and kVA. kW and kVA in a ...
Cut Sheet
... Optional specialty diffuser materials available, including some Lumicor ® recyclable resin materials Easy tool-less relamping Fluorescent, incandescent or low energy, long life LED source MRI option enables use in magnetic resonance imaging (MRI) rooms High power factor electronic ballast ...
... Optional specialty diffuser materials available, including some Lumicor ® recyclable resin materials Easy tool-less relamping Fluorescent, incandescent or low energy, long life LED source MRI option enables use in magnetic resonance imaging (MRI) rooms High power factor electronic ballast ...
Electronics EECE2412 — Spring 2016 Exam #1
... question clearly. If it happens to be correct, I give you points quickly and move on to the next problem. Please show your work in the space provided, or on extra pages, clearly labeled with the problem number. If the answer is wrong, this will1 make it easy for me to find ways to give you partial c ...
... question clearly. If it happens to be correct, I give you points quickly and move on to the next problem. Please show your work in the space provided, or on extra pages, clearly labeled with the problem number. If the answer is wrong, this will1 make it easy for me to find ways to give you partial c ...
AN-643 APPLICATION NOTE
... Communication, for calibration purposes, with the DVOA module is done through the serial communication port using the ADM101 from ADI. Communication is also done over the I2C bus, which seems to have become the preferred choice for optical module designs. These days, component suppliers must focus o ...
... Communication, for calibration purposes, with the DVOA module is done through the serial communication port using the ADM101 from ADI. Communication is also done over the I2C bus, which seems to have become the preferred choice for optical module designs. These days, component suppliers must focus o ...
NCV8852GEVB NCV8852 Evaluation Board User's Manual
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/ ...
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/ ...
TLE4250-2G
... Protection circuitry prevent the IC as well as the application from destruction in case of catastrophic events. These safeguards contain output current limitation, reverse polarity protection as well as thermal shutdown in case of overtemperature. In order to avoid excessive power dissipation that c ...
... Protection circuitry prevent the IC as well as the application from destruction in case of catastrophic events. These safeguards contain output current limitation, reverse polarity protection as well as thermal shutdown in case of overtemperature. In order to avoid excessive power dissipation that c ...
Lecture 6: Common Emitter Amplifier (“Simplified”):
... ◆ The collector junction is reversed biased and hence looks like a huge resistor compared to RC. ...
... ◆ The collector junction is reversed biased and hence looks like a huge resistor compared to RC. ...
BP5078-15
... Please choose components that do not easily get magnetically saturated in high temperature. Recommended part: C13-FR 1mH(MITSUMI) Use a rectifying diode with: Reverse Peak Voltage: 600V or higher; Average Rectifying Current: 1A or higher, Peak Surge Current: 20A or higher. If capacity of input capac ...
... Please choose components that do not easily get magnetically saturated in high temperature. Recommended part: C13-FR 1mH(MITSUMI) Use a rectifying diode with: Reverse Peak Voltage: 600V or higher; Average Rectifying Current: 1A or higher, Peak Surge Current: 20A or higher. If capacity of input capac ...