LM747.PDF
... The LM747 is a general purpose dual operational amplifier. The two amplifiers share a common bias network and power supply leads. Otherwise, their operation is completely independent. Additional features of the LM747 are: no latch-up when input common mode range is exceeded, freedom from oscillation ...
... The LM747 is a general purpose dual operational amplifier. The two amplifiers share a common bias network and power supply leads. Otherwise, their operation is completely independent. Additional features of the LM747 are: no latch-up when input common mode range is exceeded, freedom from oscillation ...
Protection of High-Voltage Power Supplies
... supplies of opposite polarity, a higher voltage HVPS arcing to a lower voltage HVPS, plasma discharge through an HVPS, high-speed current spikes, or opposite-polarity voltage spikes. These occurrences require supplemental protection circuitry in order to ensure satisfactory operation of the UltraVol ...
... supplies of opposite polarity, a higher voltage HVPS arcing to a lower voltage HVPS, plasma discharge through an HVPS, high-speed current spikes, or opposite-polarity voltage spikes. These occurrences require supplemental protection circuitry in order to ensure satisfactory operation of the UltraVol ...
Alternating Current (AC) vs. Direct Current (DC)
... Where did the Australian rock band AC/DC get their name from? Why, Alternating Current and Direct Current, of course! Both AC and DC describe types of current flow in a circuit. In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current ...
... Where did the Australian rock band AC/DC get their name from? Why, Alternating Current and Direct Current, of course! Both AC and DC describe types of current flow in a circuit. In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current ...
Electrodynamics: Alternating current, inductance
... However, we have seen that the electricity produced by some generators alternates and is therefore known as alternating current (AC). The main advantage to AC is that the voltage can be changed using transformers. That means that the voltage can be stepped up at power stations to a very high voltage ...
... However, we have seen that the electricity produced by some generators alternates and is therefore known as alternating current (AC). The main advantage to AC is that the voltage can be changed using transformers. That means that the voltage can be stepped up at power stations to a very high voltage ...
RB-Pol-214 12V Step-Up Voltage Regulator U3V12F12 Description
... The compact (0.32"×0.515") U3V12F12 switching step-up (or boost) voltage regulator takes an input voltage as low as 2.5 V and efficiently boosts it to 12 V. The pins have a 0.1" spacing, making this board compatible with standard solderless breadboards and perfboards. Overview These boost (step-up) ...
... The compact (0.32"×0.515") U3V12F12 switching step-up (or boost) voltage regulator takes an input voltage as low as 2.5 V and efficiently boosts it to 12 V. The pins have a 0.1" spacing, making this board compatible with standard solderless breadboards and perfboards. Overview These boost (step-up) ...
Laboratory Exercise 1
... the 100 kΩ resistors. The 555's Out terminal produces a square-wave voltage signal that is "high" (nearly Vcc) when the capacitor is charging, and "low" (nearly 0 volts) when the capacitor is discharging. This alternating high/low voltage signal drives the two LEDs in opposite modes: when one is on, ...
... the 100 kΩ resistors. The 555's Out terminal produces a square-wave voltage signal that is "high" (nearly Vcc) when the capacitor is charging, and "low" (nearly 0 volts) when the capacitor is discharging. This alternating high/low voltage signal drives the two LEDs in opposite modes: when one is on, ...
香港考試局
... increased. (2) A suitable inductor is added in series with the circuit. (3) Shortened the separation between the plates inside the capacitor. A. (1) only B. (3) only C. (2) and (3) only D. (1), (2) and (3) ...
... increased. (2) A suitable inductor is added in series with the circuit. (3) Shortened the separation between the plates inside the capacitor. A. (1) only B. (3) only C. (2) and (3) only D. (1), (2) and (3) ...
2 x 6 W stereo car radio power amplifier
... packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is ...
... packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is ...
AVC63-12 and AVC125-10 Voltage Regulators
... ACCESSORIES The AVC63-12 and AVC125-10 are designed to operate with the following accessories. For additional product compatibility, please contact your application specialist at Basler Electric or your sales representative. • MVC112 Manual Voltage Controller • SCP250 VAR/PF controller • EDM200 Exci ...
... ACCESSORIES The AVC63-12 and AVC125-10 are designed to operate with the following accessories. For additional product compatibility, please contact your application specialist at Basler Electric or your sales representative. • MVC112 Manual Voltage Controller • SCP250 VAR/PF controller • EDM200 Exci ...
Lect18
... oscillations have frequency w0. The maximum current in the circuit during these oscillations has value I0. 3A – What is the relation between w0 and w2, the frequency of oscillations when the initial charge ...
... oscillations have frequency w0. The maximum current in the circuit during these oscillations has value I0. 3A – What is the relation between w0 and w2, the frequency of oscillations when the initial charge ...
a high-efficiency resonant switched capacitor converter
... The main challenge to create an output voltage that is different from the target voltage, in soft-switched SCC, is that the resultant charge balance of the flying capacitor(s) after a charge/discharge cycle is not zero. The residual charge left in the flying capacitor(s) prevents the system from co ...
... The main challenge to create an output voltage that is different from the target voltage, in soft-switched SCC, is that the resultant charge balance of the flying capacitor(s) after a charge/discharge cycle is not zero. The residual charge left in the flying capacitor(s) prevents the system from co ...
TDA2050 - 32W Hi-Fi Audio Power Amplifier Datasheet
... - Set the voltage supply at the maximum operating value; - Apply a input signal in the form of a 1KHz tone burst of 1 sec duration: the repetition period of the signal pulses is 60 sec; - The output voltage is measured 1 sec from the start of the pulse; - Increase the input voltage until the output ...
... - Set the voltage supply at the maximum operating value; - Apply a input signal in the form of a 1KHz tone burst of 1 sec duration: the repetition period of the signal pulses is 60 sec; - The output voltage is measured 1 sec from the start of the pulse; - Increase the input voltage until the output ...
Voltage Doublers
... charges in such a way that, in the ideal case, exactly twice the voltage is produced at the output as at its input. The simplest of these circuits are a form of rectifier which take an AC voltage as input and outputs a doubled DC voltage. The switching elements are simple diodes and they are driven ...
... charges in such a way that, in the ideal case, exactly twice the voltage is produced at the output as at its input. The simplest of these circuits are a form of rectifier which take an AC voltage as input and outputs a doubled DC voltage. The switching elements are simple diodes and they are driven ...
AC RLC Circuits (M - O – U – S – Eeeee)
... that the current leads the voltage by ¼ of a period, as distinct from the resistive circuit, for which the two quantities were in phase, or the capacitive circuit, in which the current lagged. Also, see that the maximum current is given by VMAX / ωL. Compare this to the resistive and capacitive circ ...
... that the current leads the voltage by ¼ of a period, as distinct from the resistive circuit, for which the two quantities were in phase, or the capacitive circuit, in which the current lagged. Also, see that the maximum current is given by VMAX / ωL. Compare this to the resistive and capacitive circ ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""