POWER CONDITIONER
... in mind that the ammeter may not read at all if the total load connected is less than 2 amps (240 watts). This is a likely occurrence if only relatively low power, signal processing-type equipment is connected. With the master switch off, the ammeter can still read, but will only do so if equipment ...
... in mind that the ammeter may not read at all if the total load connected is less than 2 amps (240 watts). This is a likely occurrence if only relatively low power, signal processing-type equipment is connected. With the master switch off, the ammeter can still read, but will only do so if equipment ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... Nowadays, the industry requires power equipment increasingly high, in the megawatt range. The rapid evolution of semiconductor devices manufacturing technologies and the designer’s orientation has enabled the development of new structures of converters (inverters) with a great performance compared t ...
... Nowadays, the industry requires power equipment increasingly high, in the megawatt range. The rapid evolution of semiconductor devices manufacturing technologies and the designer’s orientation has enabled the development of new structures of converters (inverters) with a great performance compared t ...
Specific symptoms of single-phase inverters faults that are required for an expert system design Sergiu Valentin Popescu, Constantin Ghiţă, Anca-Simona Deaconu, Aurel-Ionuţ Chirilă, Ioan-Dragoş Deaconu
... power source, after the start-up, static switch CS1 is turned off for at least 5 seconds. Meanwhile the inverter Inv is turned on and is brought to the desired output parameters by the UPS control block. The state of the inverter Inv output is monitored with the transformer Tr. As soon as this trans ...
... power source, after the start-up, static switch CS1 is turned off for at least 5 seconds. Meanwhile the inverter Inv is turned on and is brought to the desired output parameters by the UPS control block. The state of the inverter Inv output is monitored with the transformer Tr. As soon as this trans ...
BD8961NV
... Considerations on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including low ...
... Considerations on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including low ...
b. notes E283C2
... Hence we can say that current in a transformer has the following characteristics: 1. It is not sinusoidal but a combination of high frequency oscillation on top of the fundamental frequency due to magnetic saturation. 2. The current lags the voltage at 90o 3. At saturation, the high frequency compon ...
... Hence we can say that current in a transformer has the following characteristics: 1. It is not sinusoidal but a combination of high frequency oscillation on top of the fundamental frequency due to magnetic saturation. 2. The current lags the voltage at 90o 3. At saturation, the high frequency compon ...
Full-text
... due to the fact that the dc filter on the low-voltage output side of the transformer is of the inductor input type and, therefore, dc output capacitors capable of carrying very high ripple currents are not needed. The inductor limits the ripple current carried by the output capacitor. Note also that ...
... due to the fact that the dc filter on the low-voltage output side of the transformer is of the inductor input type and, therefore, dc output capacitors capable of carrying very high ripple currents are not needed. The inductor limits the ripple current carried by the output capacitor. Note also that ...
LM3489/LM3489Q Hysteretic PFET Buck Controller with Enable Pin
... device is intended to be functional, but device parameter specifications may not be ensured. For specifications and test conditions, see the Electrical Characteristics. This pin is internally pulled high and clamped at 8V typical. The absolute maximum and operating maximum rating specifies the input ...
... device is intended to be functional, but device parameter specifications may not be ensured. For specifications and test conditions, see the Electrical Characteristics. This pin is internally pulled high and clamped at 8V typical. The absolute maximum and operating maximum rating specifies the input ...
NCP1380 - ONSemi
... frequency further down, offering excellent efficiency over a wide operating range. Thanks to a fault timer combined to an OPP circuitry, the controller is able to efficiently limit the output power at high−line. • Quasi−Resonance Current−mode operation: implementing quasi−resonance operation in peak ...
... frequency further down, offering excellent efficiency over a wide operating range. Thanks to a fault timer combined to an OPP circuitry, the controller is able to efficiently limit the output power at high−line. • Quasi−Resonance Current−mode operation: implementing quasi−resonance operation in peak ...
- Richtek
... RT2875 will start to skip pulses to maintain regulated output voltage. But output ripple will increase in pulse skip operation due to pulse grouping, so this operation mode should generally be avoided. The design tool will give a warning message when selecting parameters which result in hitting mini ...
... RT2875 will start to skip pulses to maintain regulated output voltage. But output ripple will increase in pulse skip operation due to pulse grouping, so this operation mode should generally be avoided. The design tool will give a warning message when selecting parameters which result in hitting mini ...
INTRINSIC SAFETY
... Photovoltaic loops provide a safe means of control because they are powered by light. A light beam goes out to the hazardous area and is either reflected back to the safe area or is interrupted. This has limited distance capabilities, is affected by dust or mist, and is limited to contact sensing ap ...
... Photovoltaic loops provide a safe means of control because they are powered by light. A light beam goes out to the hazardous area and is either reflected back to the safe area or is interrupted. This has limited distance capabilities, is affected by dust or mist, and is limited to contact sensing ap ...
an electrothermally-driven low voltage micro switch for high
... This equation can be solved by Galerkin based SSLM method [13]. On the other hand for convenience in the analysis, a one-degree of freedom lumped model can be used. A lumped model can be helpful to gain a rough quantitative estimation for the response of a wide range of electrostatically actuated mi ...
... This equation can be solved by Galerkin based SSLM method [13]. On the other hand for convenience in the analysis, a one-degree of freedom lumped model can be used. A lumped model can be helpful to gain a rough quantitative estimation for the response of a wide range of electrostatically actuated mi ...
60VIN, 3A Synchronous Buck Regulator
... Enable Input. The EN pin enables the regulator. When the pin is pulled below the threshold, the regulator will shut-down to an ultra-low current state. A precise threshold voltage allows the pin to operate as an accurate UVLO. Do not tie EN to VDD ...
... Enable Input. The EN pin enables the regulator. When the pin is pulled below the threshold, the regulator will shut-down to an ultra-low current state. A precise threshold voltage allows the pin to operate as an accurate UVLO. Do not tie EN to VDD ...
Measurement, Modeling and Simulation of Capacitor Bank
... (1994). Two main advantages of capacitor banks connecting are: improvement of the network’s voltage profile and reducing the network’s losses. In general, these capacitors are not connected all of the time, since the network loads are changing with time according to certain load curves. Hence, they ...
... (1994). Two main advantages of capacitor banks connecting are: improvement of the network’s voltage profile and reducing the network’s losses. In general, these capacitors are not connected all of the time, since the network loads are changing with time according to certain load curves. Hence, they ...
High Step-up Boost Converter Integrated With a Transformer
... converter have been developed [11]–[29]. Cascading a boost converter is a simple way to achieve a high step-up gain by employing more components. However, an increased number of powering processes degrades the efficiency and the burden of a high-voltage stress still remains [11], [12]. Coupled-induc ...
... converter have been developed [11]–[29]. Cascading a boost converter is a simple way to achieve a high step-up gain by employing more components. However, an increased number of powering processes degrades the efficiency and the burden of a high-voltage stress still remains [11], [12]. Coupled-induc ...
50-mA, 24-V, 3.2-μA Supply Current Low
... voltage, low-power operation, and miniaturized packaging. The devices, which operate over an input range of 2.5 V to 24 V, are stable with any capacitor greater than or equal to 0.47 μF. The low dropout voltage and low quiescent current allow operation at extremely low power levels. Therefore, the d ...
... voltage, low-power operation, and miniaturized packaging. The devices, which operate over an input range of 2.5 V to 24 V, are stable with any capacitor greater than or equal to 0.47 μF. The low dropout voltage and low quiescent current allow operation at extremely low power levels. Therefore, the d ...
Forced Commutated HVDC Converters
... capacitor, auxiliary switching device, etc. For the 6-pulse bridge configuration, the most important circuit-dependent parameter for commutation is the finite transformer leakage (inductance); assuming typical values for this, an overlap angle degrees is necessary, and more than two valves will cond ...
... capacitor, auxiliary switching device, etc. For the 6-pulse bridge configuration, the most important circuit-dependent parameter for commutation is the finite transformer leakage (inductance); assuming typical values for this, an overlap angle degrees is necessary, and more than two valves will cond ...
BD8960NV
... Consideration on Permissible Dissipation and Heat Generation As this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower i ...
... Consideration on Permissible Dissipation and Heat Generation As this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower i ...
Oscillators - Learn About Electronics
... LM324 is easily capable of providing sufficient current to drive LEDs and this arrangement will source about 10mA to drive D2 when the output is high, and will sink (conduct to ground) the same amount of current when the output is low, to drive D1 from the supply. The frequency may be fixed, using a ...
... LM324 is easily capable of providing sufficient current to drive LEDs and this arrangement will source about 10mA to drive D2 when the output is high, and will sink (conduct to ground) the same amount of current when the output is low, to drive D1 from the supply. The frequency may be fixed, using a ...
Basic Antennas
... signals & reduce received noise power Antenna Dimensions • operating frequencies determine physical size of antenna elements • design often uses as a variable (e.g. 1.5 length, 0.25 spacing) ...
... signals & reduce received noise power Antenna Dimensions • operating frequencies determine physical size of antenna elements • design often uses as a variable (e.g. 1.5 length, 0.25 spacing) ...
TPH3202PD TPH3202PD
... Superjunction MOSFETs with lower gate charge, faster switching speeds and smaller reverse recovery charge. GaN Switches exhibit in-circuit switching speeds in excess of 150 V/ns and can be even pushed up to 500V/ns, compared to current silicon technology usually switching at rates less than 50V/ns. ...
... Superjunction MOSFETs with lower gate charge, faster switching speeds and smaller reverse recovery charge. GaN Switches exhibit in-circuit switching speeds in excess of 150 V/ns and can be even pushed up to 500V/ns, compared to current silicon technology usually switching at rates less than 50V/ns. ...
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.""