Direct current (DC) supply grids for LED-Lighting
... The rectifier is the essential element and is typically a bridge rectifier consisting of four diodes. The electrolytic capacitor (elcap) levels out the pulsating rectified sinusoidal voltage. Recently IEC SC77A WG1 agreed to a new review of the standard IEC 61000-3-2, which means that in the near f ...
... The rectifier is the essential element and is typically a bridge rectifier consisting of four diodes. The electrolytic capacitor (elcap) levels out the pulsating rectified sinusoidal voltage. Recently IEC SC77A WG1 agreed to a new review of the standard IEC 61000-3-2, which means that in the near f ...
Line Transformer - Selection Guide
... Isolation Transformers: Used for maximum safety, versatility (can be used on both electrical & electronic equipment) and isolation from the power source, used to step-up, step-down or for straight isolation. The disadvantage to using them is weight (about double the "Auto"), more expensive and large ...
... Isolation Transformers: Used for maximum safety, versatility (can be used on both electrical & electronic equipment) and isolation from the power source, used to step-up, step-down or for straight isolation. The disadvantage to using them is weight (about double the "Auto"), more expensive and large ...
DC684A - Linear Technology
... This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing- ...
... This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing- ...
CHREC overview
... Injected signal is typically a square wave, which consists of large harmonic content The N-th harmonic locks the oscillator, while other harmonics appear on the output as spurs Decreasing the locking range reduces the SNR of the spurs ...
... Injected signal is typically a square wave, which consists of large harmonic content The N-th harmonic locks the oscillator, while other harmonics appear on the output as spurs Decreasing the locking range reduces the SNR of the spurs ...
Transistors-II
... • We can therefore draw an input characteristic (plotting base current IB against base-emitter voltage VBE) and • an output characteristic (plotting collector current Ic against collector-emitter voltage VCE) ...
... • We can therefore draw an input characteristic (plotting base current IB against base-emitter voltage VBE) and • an output characteristic (plotting collector current Ic against collector-emitter voltage VCE) ...
Monobloc Power Amplifier Stealth Max Users' Manual
... The bias adjustment potentiometer is located on the rear apron next to the green bias measurement jacks. When installing a new pair of output tubes, start with the potentiometer at the position it was for the previous tubes. A multimeter capable of reading at least 2 VDC is required, Connect the red ...
... The bias adjustment potentiometer is located on the rear apron next to the green bias measurement jacks. When installing a new pair of output tubes, start with the potentiometer at the position it was for the previous tubes. A multimeter capable of reading at least 2 VDC is required, Connect the red ...
A The Surge Diverter B The Low Impedance Isolation Transformer C
... event of a power outage, the battery backup converts reserve DC energy (stored in batteries) into AC power for the computer load. The most common type of battery backup is the standby UPS, which switches to batteries when power is lost. More expensive online UPS systems are also available to provide ...
... event of a power outage, the battery backup converts reserve DC energy (stored in batteries) into AC power for the computer load. The most common type of battery backup is the standby UPS, which switches to batteries when power is lost. More expensive online UPS systems are also available to provide ...
Graphic Equalizer Design
... experimentation the gain at the lower frequencies/bands was more than 6 dB higher than that for the bands 6 th and 7th, this problem was encountered as well during simulation and it was fixed by decreasing the resistors in the simulated inductor op amp feedback network so that the voltage attenuatio ...
... experimentation the gain at the lower frequencies/bands was more than 6 dB higher than that for the bands 6 th and 7th, this problem was encountered as well during simulation and it was fixed by decreasing the resistors in the simulated inductor op amp feedback network so that the voltage attenuatio ...
Pulse Width Modulation Amplifiers
... The SA08 is a pulse width modulation amplifier that can supply 9KW to the load. An internal oscillator requires no external components. The clock input stage divides the oscillator frequency by two, which provides the switching frequency of 22.5 kHz. The oscillator may also be used to synchronize mu ...
... The SA08 is a pulse width modulation amplifier that can supply 9KW to the load. An internal oscillator requires no external components. The clock input stage divides the oscillator frequency by two, which provides the switching frequency of 22.5 kHz. The oscillator may also be used to synchronize mu ...
Homework 1 Solution
... a. What is the voltage across R1? Ans: Using KVL(assuming VR1 has + on left side): -100V+VR1+101V=0 Therefore VR1=-1V b. If you removed the resistor, R1 and touched the plus terminals of both sources with your hands, would you get a shock? Why or why not? Ans: DO NOT TRY THIS AT HOME! You would prob ...
... a. What is the voltage across R1? Ans: Using KVL(assuming VR1 has + on left side): -100V+VR1+101V=0 Therefore VR1=-1V b. If you removed the resistor, R1 and touched the plus terminals of both sources with your hands, would you get a shock? Why or why not? Ans: DO NOT TRY THIS AT HOME! You would prob ...
How to Select the Frequency Foldback Product Option When
... load range. Incorporating protection features for rugged operation, it is ideal in systems where cost−effectiveness, reliability, low stand−by power and high efficiency are key requirements: • Valley Synchronized Frequency Fold−back (VSFF): The circuit operates in Critical conduction Mode (CrM) when ...
... load range. Incorporating protection features for rugged operation, it is ideal in systems where cost−effectiveness, reliability, low stand−by power and high efficiency are key requirements: • Valley Synchronized Frequency Fold−back (VSFF): The circuit operates in Critical conduction Mode (CrM) when ...
Parallel and Series Circuit
... • As more bulbs are added in series, the voltage in the circuit decreases. • Current remains the same. • If any bulb is removed then the circuit will not work ...
... • As more bulbs are added in series, the voltage in the circuit decreases. • Current remains the same. • If any bulb is removed then the circuit will not work ...
Energy Efficient and High Performance Current-Mode Neural
... The schematic of the SAR logic consists of shift register and code shift register using D-flip flop as shown in figure ix. Initially the reset line goes low. This line controls set line of FF1 and reset lines of all other sequencer flip flops. The same reset signal also controls the reset line of c ...
... The schematic of the SAR logic consists of shift register and code shift register using D-flip flop as shown in figure ix. Initially the reset line goes low. This line controls set line of FF1 and reset lines of all other sequencer flip flops. The same reset signal also controls the reset line of c ...
330R 1/8 DIN Process Monitor and Indicator
... units. Among this feature’s applications is the conversion of level readings into volume for irregularly-shaped receptacles (not available for thermocouple or RTD inputs). • Selectable digital input filtering provides for a more stable display of “noisy” processes. • Peak and valley (maximum and min ...
... units. Among this feature’s applications is the conversion of level readings into volume for irregularly-shaped receptacles (not available for thermocouple or RTD inputs). • Selectable digital input filtering provides for a more stable display of “noisy” processes. • Peak and valley (maximum and min ...
2.4.1 RMS Word Document | GCE AS/A
... The reason for this is that the value of 240V a.c. refers to a voltage called the root mean square (or rms) voltage. The root mean square voltage of an a.c. signal is the value of a sinusoidal a.c. voltage which would provide the same heating effect in a resistor as the equivalent d.c. voltage. So i ...
... The reason for this is that the value of 240V a.c. refers to a voltage called the root mean square (or rms) voltage. The root mean square voltage of an a.c. signal is the value of a sinusoidal a.c. voltage which would provide the same heating effect in a resistor as the equivalent d.c. voltage. So i ...
95% High efficiency power supply changes
... The surface area available to provide cooling is the limiting factor in how much heat you can dissipate from a convection-cooled power supply – one that doesn’t need a fan. It follows that the more efficient you make the power supply, the less heat you’ll need to remove and the smaller the unit can ...
... The surface area available to provide cooling is the limiting factor in how much heat you can dissipate from a convection-cooled power supply – one that doesn’t need a fan. It follows that the more efficient you make the power supply, the less heat you’ll need to remove and the smaller the unit can ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.