MAX1698/MAX1698A High-Efficiency Step-Up Current Regulator for LEDs General Description
... The requirements of the input capacitor depend on the type of the input voltage source. However, in many applications, the same capacitor type and value are used for both the input and output capacitors. ...
... The requirements of the input capacitor depend on the type of the input voltage source. However, in many applications, the same capacitor type and value are used for both the input and output capacitors. ...
CAT32 - CMOS White LED Driver
... 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/ ...
U-153 UC3855A/B High Performance Power Factor Preregulator
... achieving zero voltage turn-on of the main switch and zero current turn-off of the boost diode. This is accomplished by employing resonant operation only during switch transitions. During the rest of the cycle, the resonant network is essentially removed from the circuit and converter operation is i ...
... achieving zero voltage turn-on of the main switch and zero current turn-off of the boost diode. This is accomplished by employing resonant operation only during switch transitions. During the rest of the cycle, the resonant network is essentially removed from the circuit and converter operation is i ...
Low Voltage Boost Driver PR4404
... resulting in a lower efficiency and eventually in an insufficient current regulation at higher supply voltages. So a proper balance between behaviour at the low end and high end of the supply voltage range in the respective application should be found. See diagrams and application examples for some ...
... resulting in a lower efficiency and eventually in an insufficient current regulation at higher supply voltages. So a proper balance between behaviour at the low end and high end of the supply voltage range in the respective application should be found. See diagrams and application examples for some ...
TNY253/254/255 TinySwitch™ Family
... it is possible to use a simple RC snubber (and even just a capacitor alone in 115 VAC applications at powers levels below 4 W). Secondly, a low switching frequency also reduces EMI filtering requirements. At 44 kHz, the first, second and third harmonics are all below 150 kHz where the EMI limits ar ...
... it is possible to use a simple RC snubber (and even just a capacitor alone in 115 VAC applications at powers levels below 4 W). Secondly, a low switching frequency also reduces EMI filtering requirements. At 44 kHz, the first, second and third harmonics are all below 150 kHz where the EMI limits ar ...
MOSFET - Universiti Sains Malaysia
... The depletion region depth is dependent on the voltage drop across the Schottky junction. Since the current flowing through the channel is equivalent to a current flow through a distributed resistor, there is a larger voltage drop across the drain end of the channel than at the source end. This resu ...
... The depletion region depth is dependent on the voltage drop across the Schottky junction. Since the current flowing through the channel is equivalent to a current flow through a distributed resistor, there is a larger voltage drop across the drain end of the channel than at the source end. This resu ...
Advanced LIVA/TIVA Techniques
... penetrate into the substrate. As the focussed laser beam passes over an integrated circuit, it causes changes in the device electrical characteristics through two effects, generation of photocarriers and heating. If the laser wavelength is chosen to be below the semiconductor bandgap†, then only hea ...
... penetrate into the substrate. As the focussed laser beam passes over an integrated circuit, it causes changes in the device electrical characteristics through two effects, generation of photocarriers and heating. If the laser wavelength is chosen to be below the semiconductor bandgap†, then only hea ...
computations
... evident formation of cathode region at high pressure by streamer mechanism. The basic aspect of the corona discharge in a pointto-plane configuration at atmospherical pressures may be explained on the basis of the streamer theory. At a certain stage of the development of a single avalanche the space ...
... evident formation of cathode region at high pressure by streamer mechanism. The basic aspect of the corona discharge in a pointto-plane configuration at atmospherical pressures may be explained on the basis of the streamer theory. At a certain stage of the development of a single avalanche the space ...
Comparing Circuit Protection Technologies for 48 V DC in High
... GDTs in Series with Capacitors • GDTs spark over in rapid succession • The spark-over voltage for the series GDTs is only slightly higher than a single GDT spark-over voltage • Summation of arc voltages across the GDTs (e.g. 60 V) • Still need to address let through energy due to the relatively hig ...
... GDTs in Series with Capacitors • GDTs spark over in rapid succession • The spark-over voltage for the series GDTs is only slightly higher than a single GDT spark-over voltage • Summation of arc voltages across the GDTs (e.g. 60 V) • Still need to address let through energy due to the relatively hig ...
Pdf - Text of NPTEL IIT Video Lectures
... BJT is a minority carrier device, it has a negative resistance coefficient and it is because of this. So, since it has negative resistance coefficient, paralleling 2 transistors is difficult. For that matter, any device which has a negative resistance coefficient, paralleling is difficult. Why it is ...
... BJT is a minority carrier device, it has a negative resistance coefficient and it is because of this. So, since it has negative resistance coefficient, paralleling 2 transistors is difficult. For that matter, any device which has a negative resistance coefficient, paralleling is difficult. Why it is ...
74VHC4040 12-Stage Binary Counter 74VHC4040 12-Sta
... The VHC4040 is an advanced high-speed CMOS device fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHC4040 is a 12-stage counter which increments on the negative edge of ...
... The VHC4040 is an advanced high-speed CMOS device fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHC4040 is a 12-stage counter which increments on the negative edge of ...
QPI-8 - Vicor
... transient event. Upon recovery from the transient, the QPI-8 has to supply the current to charge the capacitors back to the BUS+ voltage value and provide the current for the converter in less time that the fault delay, about 1.2ms. If the caps cannot be completely charged prior to the fault time-ou ...
... transient event. Upon recovery from the transient, the QPI-8 has to supply the current to charge the capacitors back to the BUS+ voltage value and provide the current for the converter in less time that the fault delay, about 1.2ms. If the caps cannot be completely charged prior to the fault time-ou ...
EVBUM2175 - 3.6 W Flyback 3 LED Step Dimmable Driver
... resistor will also have some effect on the output current. Since the input power is < 5 W maximum, this falls below the level where power factor or harmonic current requirements are applicable in many countries (e.g. US). In the EU, the harmonic current requirements for IEC61000-3-2 Class C are appl ...
... resistor will also have some effect on the output current. Since the input power is < 5 W maximum, this falls below the level where power factor or harmonic current requirements are applicable in many countries (e.g. US). In the EU, the harmonic current requirements for IEC61000-3-2 Class C are appl ...
Amplifier Transistors
... Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under i ...
... Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under i ...
Morley AIS 02 - Fire Detection Systems Guide
... voltage for a few milliseconds, and looks for the line voltage being held up by the capacitor. When a head is removed, the panel will see the line voltage drop immediately as the capacitor's discharge will be inhibited by the diode, and thereby a fault can be signalled. A third type of end of line d ...
... voltage for a few milliseconds, and looks for the line voltage being held up by the capacitor. When a head is removed, the panel will see the line voltage drop immediately as the capacitor's discharge will be inhibited by the diode, and thereby a fault can be signalled. A third type of end of line d ...
Digital Isolator Evolution Drives Optocoupler
... Figure 1 shows the Si87xx device’s two-die architecture in which the diode emulator, high-frequency transmitter and galvanic isolator are on the input-side die, and the galvanic isolator, receiver and output switch are on the output-side die. The device operating principal is straightforward: the di ...
... Figure 1 shows the Si87xx device’s two-die architecture in which the diode emulator, high-frequency transmitter and galvanic isolator are on the input-side die, and the galvanic isolator, receiver and output switch are on the output-side die. The device operating principal is straightforward: the di ...
mohair-one-description 1.8MB
... MOHAIR ONE miniature transceiver MOHAIR ONE is a low power (QRPp) CW transceiver for 80 m band. It can be operated with a standard 9 volt battery (6LR61). It is very suitable for battery operation because of the low current consumption and the transceiver will maintain stable operation down to 5.2 v ...
... MOHAIR ONE miniature transceiver MOHAIR ONE is a low power (QRPp) CW transceiver for 80 m band. It can be operated with a standard 9 volt battery (6LR61). It is very suitable for battery operation because of the low current consumption and the transceiver will maintain stable operation down to 5.2 v ...
LNK362-364 rev_E.indd
... integrated MOSFET in U1. No primary clamp is required as the low value and tight tolerance of the LNK362 internal current limit allows the transformer primary winding capacitance to provide adequate clamping of the leakage inductance drain voltage spike. The secondary of the flyback transformer T1 i ...
... integrated MOSFET in U1. No primary clamp is required as the low value and tight tolerance of the LNK362 internal current limit allows the transformer primary winding capacitance to provide adequate clamping of the leakage inductance drain voltage spike. The secondary of the flyback transformer T1 i ...
Monday, Feb. 20, 2012
... connected to the terminals of a battery? – Electrons start flowing through the wire continuously as soon as both the terminals are connected to the wire. How? • The potential difference between the battery terminals sets up an electric field inside the wire and in the direction parallel to it • Free ...
... connected to the terminals of a battery? – Electrons start flowing through the wire continuously as soon as both the terminals are connected to the wire. How? • The potential difference between the battery terminals sets up an electric field inside the wire and in the direction parallel to it • Free ...
Method for Static and Dynamic Resistance Measurements of HV
... Battery is not used to generate high current trough the contacts, instead of that it is used to supply DC/DC converter, which will then charge ultra capacitor with constant current. During the resistance measurement, DC/DC is turned off to eliminate high frequency switching ripple. Only linear analo ...
... Battery is not used to generate high current trough the contacts, instead of that it is used to supply DC/DC converter, which will then charge ultra capacitor with constant current. During the resistance measurement, DC/DC is turned off to eliminate high frequency switching ripple. Only linear analo ...
P–n diode
This article provides a more detailed explanation of p–n diode behavior than that found in the articles p–n junction or diode.A p–n diode is a type of semiconductor diode based upon the p–n junction. The diode conducts current in only one direction, and it is made by joining a p-type semiconducting layer to an n-type semiconducting layer. Semiconductor diodes have multiple uses including rectification of alternating current to direct current, detection of radio signals, emitting light and detecting light.