UM0674
... The UC3844B controller provides the necessary features to implement off-line or DC-to-DC fixed-frequency current mode control schemes with a minimal number of external parts. The IC can control the power capability variations with the mains voltage by means of the feedforward line voltage. The IC al ...
... The UC3844B controller provides the necessary features to implement off-line or DC-to-DC fixed-frequency current mode control schemes with a minimal number of external parts. The IC can control the power capability variations with the mains voltage by means of the feedforward line voltage. The IC al ...
BITX40 with Raduino - tips and mods
... collector of AGC transistor to the base of Q3 in series with a 10nF-100nF cap. ------the other thing to do is reduce the rf amp gain. you could try removing or increasing the 10 ohm in the emitter bypass of the rf amp. ------The bitx transceivers have more than necessary gain. The strong signals ten ...
... collector of AGC transistor to the base of Q3 in series with a 10nF-100nF cap. ------the other thing to do is reduce the rf amp gain. you could try removing or increasing the 10 ohm in the emitter bypass of the rf amp. ------The bitx transceivers have more than necessary gain. The strong signals ten ...
Adjustable LNB Power Supply Is DiSEqC Compatible
... communicates data by toggling its supply voltage between 13V and 17V. The circuit shown also supports an emerging and more sophisticated communications bus called the DiSEqC standard (for Digital Satellite Equipment Control). Developed by the European Telecommunications Satellite Organization, the o ...
... communicates data by toggling its supply voltage between 13V and 17V. The circuit shown also supports an emerging and more sophisticated communications bus called the DiSEqC standard (for Digital Satellite Equipment Control). Developed by the European Telecommunications Satellite Organization, the o ...
AN electronic turbosupercharger control system, newly developed
... from the amplifier. If no signal is applied to the grids of the discriminator tubes, the current flowing through the amplifier-excited field winding of the motor is negligible and no motor rotation occurs. The turbo-governor is driven from the turbosupercharger tachometer connection by means of a sh ...
... from the amplifier. If no signal is applied to the grids of the discriminator tubes, the current flowing through the amplifier-excited field winding of the motor is negligible and no motor rotation occurs. The turbo-governor is driven from the turbosupercharger tachometer connection by means of a sh ...
Oscillators & Components
... Low power consumption is an advantage of CMOS integrated circuits compared to TTL integrated circuits. (G6C03) • CMOS is the most commonly used digital logic family of integrated circuits. ...
... Low power consumption is an advantage of CMOS integrated circuits compared to TTL integrated circuits. (G6C03) • CMOS is the most commonly used digital logic family of integrated circuits. ...
Design of a Small Personal Electric Vehicle as
... The dc motor can be relatively light, but its main advantage is the easy control compared to alternating current machines. Nevertheless the teaching staff has a preference for an induction motor (with cage rotor) since: • the induction motor is an extremely robust and durable machine that requires l ...
... The dc motor can be relatively light, but its main advantage is the easy control compared to alternating current machines. Nevertheless the teaching staff has a preference for an induction motor (with cage rotor) since: • the induction motor is an extremely robust and durable machine that requires l ...
Protection and control HV/MV substation Sepam
... can only be used if the Sepam and trip circuit auxiliary power sources have the same voltage rating. If the equipment contains an undervoltage release coil only, the trip circuit is not supervised since it is fail-safe. This function can also detect position information discrepancies (neither open n ...
... can only be used if the Sepam and trip circuit auxiliary power sources have the same voltage rating. If the equipment contains an undervoltage release coil only, the trip circuit is not supervised since it is fail-safe. This function can also detect position information discrepancies (neither open n ...
Category 3 Parallel Operating
... Protection alternatives for the various acceptable transformer connections are shown. Only one protection alternative will ultimately be used, depending on the actual transformer winding connections. VT’s for 59, 27, 81o/u and 32 are shown connected on the primary (Project side) of the power transfo ...
... Protection alternatives for the various acceptable transformer connections are shown. Only one protection alternative will ultimately be used, depending on the actual transformer winding connections. VT’s for 59, 27, 81o/u and 32 are shown connected on the primary (Project side) of the power transfo ...
Basic Diode Electronics
... two currents would be present. First, a small current, called reverse saturation current, is, exists because of the presence of the contact potential and the associated electric field. In addition, it also happens that holes and free electrons with sufficient thermal energy can cross the junction. T ...
... two currents would be present. First, a small current, called reverse saturation current, is, exists because of the presence of the contact potential and the associated electric field. In addition, it also happens that holes and free electrons with sufficient thermal energy can cross the junction. T ...
ONS321A5VGEVB, ONS321B12VGEVB ONS321A5VGEVB/ Evaluation Board User's
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any partic ...
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any partic ...
RA13H4452M 数据资料DataSheet下载
... 12.5-volt mobile radios that operate in the 440- to 520-MHz range. The battery can be connected directly to the drain of the enhancement-mode MOSFET transistors. Without the gate voltage (VGG=0V), only a small leakage current flows into the drain and the RF input signal attenuates up to 60 dB. The o ...
... 12.5-volt mobile radios that operate in the 440- to 520-MHz range. The battery can be connected directly to the drain of the enhancement-mode MOSFET transistors. Without the gate voltage (VGG=0V), only a small leakage current flows into the drain and the RF input signal attenuates up to 60 dB. The o ...
Alternating current
Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).