Joule thief
... • Kaparnik stated that an NPN transistor with lower V ₑ₍ ₐ ₎ yielded better results. He tested three transistors: ZTX450 at 73% efficiency, ZTX650 at 79% efficiency, BC550 at 57% efficiency. Mitchell The gain of a transistor is not linear with VCE. At low showed only the BC549 in his schematic.[10] supply ...
... • Kaparnik stated that an NPN transistor with lower V ₑ₍ ₐ ₎ yielded better results. He tested three transistors: ZTX450 at 73% efficiency, ZTX650 at 79% efficiency, BC550 at 57% efficiency. Mitchell The gain of a transistor is not linear with VCE. At low showed only the BC549 in his schematic.[10] supply ...
Simulation of Power Converters Using Matlab-Simulink
... always have such available software. In many cases, they have to simulate power electronics devices for occasional need. So they don't want to buy the SimPowerSystems toolbox in addition to Matlab and Simulink. The purpose of this chapter is to present the ability to simulate power converters using ...
... always have such available software. In many cases, they have to simulate power electronics devices for occasional need. So they don't want to buy the SimPowerSystems toolbox in addition to Matlab and Simulink. The purpose of this chapter is to present the ability to simulate power converters using ...
safe-test point
... Point™ is designed with metered test points to allow for safe voltage measurement from outside the panel by inserting properly rated instrument probes into the device measuring phase-to-phase and phase-to-ground. The voltage values will read with a percentage of error that varies depending on the ra ...
... Point™ is designed with metered test points to allow for safe voltage measurement from outside the panel by inserting properly rated instrument probes into the device measuring phase-to-phase and phase-to-ground. The voltage values will read with a percentage of error that varies depending on the ra ...
SIMULATION AND EXPERIMENTAL RESULTS OF SHUNT ACTIVE
... fundamental frequency. It also could be understood as an additional waveform of frequency that is multiple form fundamental frequency. Power electrical system could be severely affected because of harmonics issue. In threephase system with neutral, when each phases is fully loaded the combined funda ...
... fundamental frequency. It also could be understood as an additional waveform of frequency that is multiple form fundamental frequency. Power electrical system could be severely affected because of harmonics issue. In threephase system with neutral, when each phases is fully loaded the combined funda ...
How to Compare the Figure Of Merit (FOM) of MOSFETs
... Generally it is possible to take the lowest of the several R(DS)ON values and to multiply it with the lowest given gate charge value. The result would be a number which is nicely low but doesn't say anything about the MOSFET. A sensible comparison of FOMs is only possible if made under the same cond ...
... Generally it is possible to take the lowest of the several R(DS)ON values and to multiply it with the lowest given gate charge value. The result would be a number which is nicely low but doesn't say anything about the MOSFET. A sensible comparison of FOMs is only possible if made under the same cond ...
IMT17 Features Mechanical Data
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
CIRCUITS LABORATORY Experiment 8 DC Power Supplies
... In the above analysis, an ideal diode model was used. Using a real diode, one must consider the specifications or maximum rating of the diode to ensure that these ratings are not exceeded. First, the forward bias voltage of the diode is VD(ON) = 0.7 V for a silicon diode rather than a short circuit ...
... In the above analysis, an ideal diode model was used. Using a real diode, one must consider the specifications or maximum rating of the diode to ensure that these ratings are not exceeded. First, the forward bias voltage of the diode is VD(ON) = 0.7 V for a silicon diode rather than a short circuit ...
AL8806 Description Pin Assignments
... The small size of ceramic capacitors makes them ideal for AL8806 applications. X5R and X7R types are recommended because they retain their capacitance over wider voltage and temperature ranges than other types such as Z5U. A 2.2μF input capacitor is sufficient for most intended applications of AL880 ...
... The small size of ceramic capacitors makes them ideal for AL8806 applications. X5R and X7R types are recommended because they retain their capacitance over wider voltage and temperature ranges than other types such as Z5U. A 2.2μF input capacitor is sufficient for most intended applications of AL880 ...
Mastech MS8264
... * For all dc functions, including manual or auto-ranging, to avoid the risk of shock due to possible improper reading, verify the presence of any ac voltages by first using the ac function. Then select a dc voltage range equal to or greater than the ac range. * Disconnect circuits power and discharg ...
... * For all dc functions, including manual or auto-ranging, to avoid the risk of shock due to possible improper reading, verify the presence of any ac voltages by first using the ac function. Then select a dc voltage range equal to or greater than the ac range. * Disconnect circuits power and discharg ...
NCL30051LEDGEVB - 35-50 Volt, Up to 1.5 Amp, Offline
... significantly reduce maintenance costs given the LEDs long operating lifetime. This specific driver design is tailored to support LEDs such as the Cree XLAMPt XP−G and XM−L, and OSRAM Golden DRAGON® Plus that have maximum drive currents of at least 1000 mA. These LEDs exhibit good efficacies at high ...
... significantly reduce maintenance costs given the LEDs long operating lifetime. This specific driver design is tailored to support LEDs such as the Cree XLAMPt XP−G and XM−L, and OSRAM Golden DRAGON® Plus that have maximum drive currents of at least 1000 mA. These LEDs exhibit good efficacies at high ...
Exclusive Technology Feature Synchronous Zeta Converter
... charged to the controller’s internal bias voltage V CC (typically about 7.5 V), through diode D2, when switched to ground. This connection is necessary to allow the BOOT capacitor to recharge, so that it can drive the top FET, before the FET’s attempt to switch. When the bottom FET turns off, and wh ...
... charged to the controller’s internal bias voltage V CC (typically about 7.5 V), through diode D2, when switched to ground. This connection is necessary to allow the BOOT capacitor to recharge, so that it can drive the top FET, before the FET’s attempt to switch. When the bottom FET turns off, and wh ...
the buck converter
... • The linear regulator can be very efficient only if VO is close to VIN. • The linear regulator (LR) has another limitation, which is the minimum voltage difference between VIN and VO. The transistor in the LR must be operated in its linear mode. So it requires a certain minimum voltage drop across ...
... • The linear regulator can be very efficient only if VO is close to VIN. • The linear regulator (LR) has another limitation, which is the minimum voltage difference between VIN and VO. The transistor in the LR must be operated in its linear mode. So it requires a certain minimum voltage drop across ...
the data sheet
... The leading edge blanking circuit inhibits the current limit comparator for a short time after the output MOSFET is turned on. The leading edge blanking time has been set so that current spikes caused by primary-side capacitances and secondary-side rectifier reverse recovery time will not cause prem ...
... The leading edge blanking circuit inhibits the current limit comparator for a short time after the output MOSFET is turned on. The leading edge blanking time has been set so that current spikes caused by primary-side capacitances and secondary-side rectifier reverse recovery time will not cause prem ...
Switched Mode Controller for DC Motor Drive
... Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on ...
... Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on ...
ZXCL SERIES Micropower SC70-5 & SOT23-5 low dropout regulators
... A TTL compatible input is provided to allow the regulator to be shut down. A low voltage on the Enable pin puts the device into shutdown mode. In this mode the regulator circuit is switched off and the quiescent current reduces to virtually zero (typically less than 10nA) for input voltages above th ...
... A TTL compatible input is provided to allow the regulator to be shut down. A low voltage on the Enable pin puts the device into shutdown mode. In this mode the regulator circuit is switched off and the quiescent current reduces to virtually zero (typically less than 10nA) for input voltages above th ...
Capacitors
... Capacitors are now made with capacitances of 1 farad or more, but they are not parallelplate capacitors. Instead, they are activated carbon, which acts as a capacitor on a very small scale. The capacitance of 0.1 g of activated carbon is about 1 farad. Some computer keyboards use capacitors; depres ...
... Capacitors are now made with capacitances of 1 farad or more, but they are not parallelplate capacitors. Instead, they are activated carbon, which acts as a capacitor on a very small scale. The capacitance of 0.1 g of activated carbon is about 1 farad. Some computer keyboards use capacitors; depres ...
Light Intensity, Blackbody Radiation
... charge carriers called "holes"; in the lower region, the current carriers are negatively charged electrons. If this device is "reverse-biased" so that the upper electrode is more negative than the lower one, the charge carriers will separate, as shown in Figure 2.2. In this case, the positive holes ...
... charge carriers called "holes"; in the lower region, the current carriers are negatively charged electrons. If this device is "reverse-biased" so that the upper electrode is more negative than the lower one, the charge carriers will separate, as shown in Figure 2.2. In this case, the positive holes ...
Switch power
... input voltage, output voltage and load current are all dictated by the requirements of the design, whereas, the Inductance and ripple current are the only free parameters. It can be seen form Equation 1, that the inductance is inversely proportional to the ripple current. In other words, if you want ...
... input voltage, output voltage and load current are all dictated by the requirements of the design, whereas, the Inductance and ripple current are the only free parameters. It can be seen form Equation 1, that the inductance is inversely proportional to the ripple current. In other words, if you want ...
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.