High Voltage Power Supply
... The switch mode power supplies of the VAPTEC series are specially designed for electron-beam evaporation processes. This series includes the actual high voltage power supply NHRR which provides an output voltage of 8 – 10kV at an output power of 3, 5, 10kW as well as the necessary cathode-heat trans ...
... The switch mode power supplies of the VAPTEC series are specially designed for electron-beam evaporation processes. This series includes the actual high voltage power supply NHRR which provides an output voltage of 8 – 10kV at an output power of 3, 5, 10kW as well as the necessary cathode-heat trans ...
Alternator Secrets
... alternator you have can usually be found in a standard auto repair manual such as Motor's or Chilton's. Often you'll get instructions on dismantling and repairing alternators as well. ...
... alternator you have can usually be found in a standard auto repair manual such as Motor's or Chilton's. Often you'll get instructions on dismantling and repairing alternators as well. ...
Application Note AN4146 Design Guidelines for Quasi-Resonant Converters )
... losses. Therefore determine fsmin by a trade-off between switching losses and transformer size. Typically, fsmin is set to be around 25kHz. • The falling time of the MOSFET drain voltage (TF) : As shown in Figure 5, the MOSFET drain voltage fall time is half of the resonant period of the MOSFET’s ef ...
... losses. Therefore determine fsmin by a trade-off between switching losses and transformer size. Typically, fsmin is set to be around 25kHz. • The falling time of the MOSFET drain voltage (TF) : As shown in Figure 5, the MOSFET drain voltage fall time is half of the resonant period of the MOSFET’s ef ...
AN140 - Basic Concepts of Linear Regulator and Switching Mode
... high efficiency, tight printed circuit board (PCB) space, accurate output regulation, fast transient response, low solution cost, etc. Power management design is becoming a more frequent and challenging task for system designers, many of whom may not have strong power backgrounds. A power converter ...
... high efficiency, tight printed circuit board (PCB) space, accurate output regulation, fast transient response, low solution cost, etc. Power management design is becoming a more frequent and challenging task for system designers, many of whom may not have strong power backgrounds. A power converter ...
LTC3701 - 2-Phase, Low Input Voltage, Dual Step
... The LTC3701 uses a constant frequency, current mode architecture with the two controller channels operating 180 degrees out of phase. During normal operation, each external P-channel power MOSFET is turned on when the clock for that channel sets the RS latch, and turned off when the current comparat ...
... The LTC3701 uses a constant frequency, current mode architecture with the two controller channels operating 180 degrees out of phase. During normal operation, each external P-channel power MOSFET is turned on when the clock for that channel sets the RS latch, and turned off when the current comparat ...
1863 and 1864 Megohmmeters User and Service Manual
... The Type 1863 Megohmmeter indicates directly on an analog panel meter any resistance from 50 kΩ to 20 TΩ; the Type 1864 (Figure 1-1) indicates resistance from 50 kΩ to 200 TΩ. These ranges are suitable for leakage-resistance measurements of most types of insulation used in electrical instruments, el ...
... The Type 1863 Megohmmeter indicates directly on an analog panel meter any resistance from 50 kΩ to 20 TΩ; the Type 1864 (Figure 1-1) indicates resistance from 50 kΩ to 200 TΩ. These ranges are suitable for leakage-resistance measurements of most types of insulation used in electrical instruments, el ...
Asynchronous generator
... Figure 10: Vector diagram of an asynchronous generator with no load and with a purely inductive load At no load, Im = IC implying the steady state working point P is visualised in Figure 4 (this is the situation described in Paragraph 3.2). 4.3: The asynchronous generator with a purely inductive loa ...
... Figure 10: Vector diagram of an asynchronous generator with no load and with a purely inductive load At no load, Im = IC implying the steady state working point P is visualised in Figure 4 (this is the situation described in Paragraph 3.2). 4.3: The asynchronous generator with a purely inductive loa ...
BU7295HFV
... Then input terminal voltage is set to more than VSS. (Note 4) An excessive input current will flow when input voltages of more than VDD+0.6V or less than VSS-0.6V are applied. The input current can be set to less than the rated current by adding a limiting resistor. Caution: Operating the IC over th ...
... Then input terminal voltage is set to more than VSS. (Note 4) An excessive input current will flow when input voltages of more than VDD+0.6V or less than VSS-0.6V are applied. The input current can be set to less than the rated current by adding a limiting resistor. Caution: Operating the IC over th ...
AS1341
... The AS1341 uses a proprietary current-limiting control scheme with operation up to 100% duty cycle. The DC-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high-supply currents associated with conventi ...
... The AS1341 uses a proprietary current-limiting control scheme with operation up to 100% duty cycle. The DC-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high-supply currents associated with conventi ...
ELECTROMAGNETIC INDUCTION
... OBJECTIVE: To study the laws of electromagnetic induction (Faraday's law and Lenz's law). THEORY: Electromagnetic induction is the process in which a magnetic field causes or INDUCES an electric field. However, a "static" magnetic field will not do this; it takes a CHANGING magnetic field. A changin ...
... OBJECTIVE: To study the laws of electromagnetic induction (Faraday's law and Lenz's law). THEORY: Electromagnetic induction is the process in which a magnetic field causes or INDUCES an electric field. However, a "static" magnetic field will not do this; it takes a CHANGING magnetic field. A changin ...
Full Text - ARPN Journals
... BLDC. In this section, the topology derivation of the proposed converter is presented. Figure-3 shows a modified Cuk converter also known as a “Self-lift Cuk” converter. Referring to Figure-3, the converter can be manipulated to produce a positive output voltage from a negative input voltage. Simila ...
... BLDC. In this section, the topology derivation of the proposed converter is presented. Figure-3 shows a modified Cuk converter also known as a “Self-lift Cuk” converter. Referring to Figure-3, the converter can be manipulated to produce a positive output voltage from a negative input voltage. Simila ...
NE555, SA555, SE555 PRECISION TIMERS
... the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset and the output goes low. When the output is low, a low-impedance path is provided betwe ...
... the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset and the output goes low. When the output is low, a low-impedance path is provided betwe ...
Stick welding
... (including stainless steel) but aluminum, nickel and copper alloys can also be welded with this method. Fact 3: The main advantages of shielded metal arc welding are that high-quality welds are made rapidly at a low cost. ...
... (including stainless steel) but aluminum, nickel and copper alloys can also be welded with this method. Fact 3: The main advantages of shielded metal arc welding are that high-quality welds are made rapidly at a low cost. ...
ADP1712-14
... efficiency and allows operation over a wide input voltage range. Using a novel scaling architecture, ground current is a very low 75 μA when driving a 100 μA load, making the ADP1712/ ADP1713/ADP1714 ideal for battery-operated portable equipment. The ADP1712/ADP1713/ADP1714 are available in 16 fixed ...
... efficiency and allows operation over a wide input voltage range. Using a novel scaling architecture, ground current is a very low 75 μA when driving a 100 μA load, making the ADP1712/ ADP1713/ADP1714 ideal for battery-operated portable equipment. The ADP1712/ADP1713/ADP1714 are available in 16 fixed ...
New In Release 6.0.1
... 14) Added 18 devices to the SDT Component Library. Bug fixes: 1. When we create a large segment on the segment design area and generate HTML report for it, the snapshot shown in the HTML report does not capture the whole segment. 2. Copy Segment feature copies the tags of the components which is inc ...
... 14) Added 18 devices to the SDT Component Library. Bug fixes: 1. When we create a large segment on the segment design area and generate HTML report for it, the snapshot shown in the HTML report does not capture the whole segment. 2. Copy Segment feature copies the tags of the components which is inc ...
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.""