Power Quality Issues, Disturbance Sources, Financial Impacts
... A sag is the reduction of AC Voltage at a given frequency for the duration of 0.5 cycles to 1 minute’s time. Sages are usually caused by system faults, and often the result of switching on loads with high demand startup currents. For more details about power sags visit our newsletter archives. Possi ...
... A sag is the reduction of AC Voltage at a given frequency for the duration of 0.5 cycles to 1 minute’s time. Sages are usually caused by system faults, and often the result of switching on loads with high demand startup currents. For more details about power sags visit our newsletter archives. Possi ...
Slide 1
... Display Devices • Charge-Coupled Devices • Series of “buckets” containing an analog voltage. • Analog values transferred from “bucket” to “bucket” when a clock pulse is received. • Can NOT be used as an analog-to-digital converter. ...
... Display Devices • Charge-Coupled Devices • Series of “buckets” containing an analog voltage. • Analog values transferred from “bucket” to “bucket” when a clock pulse is received. • Can NOT be used as an analog-to-digital converter. ...
A distributed voltage stability margin for power
... in Yu et al. 2015 and Wang et al. 2016). Additionally, convex optimization tools have been used to determine sufficient condition for unsolvability (and thus voltage collapse) in Molzahn et al. (2013). All these works propose global indices, in the sense that the knowledge of the entire system state ...
... in Yu et al. 2015 and Wang et al. 2016). Additionally, convex optimization tools have been used to determine sufficient condition for unsolvability (and thus voltage collapse) in Molzahn et al. (2013). All these works propose global indices, in the sense that the knowledge of the entire system state ...
Realizing Output Short-Circuit Protection With
... high efficiency and small size solution in portable systems. It is widely used in quick charge power bank, blue-tooth speaker, and portable POS terminal application, etc. The TPS61088 implements cycle-by-cycle current limit to protect the device from overload conditions during boost switching. This ...
... high efficiency and small size solution in portable systems. It is widely used in quick charge power bank, blue-tooth speaker, and portable POS terminal application, etc. The TPS61088 implements cycle-by-cycle current limit to protect the device from overload conditions during boost switching. This ...
MAX1489E ±15kV ESD-Protected, Quad, Low-Power RS-232 Line Receiver _______________General Description
... Human Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2. Because series resistance is lower in the IEC1000-4-2 ESD test model (Figure 3a), the ESD withstand voltage measured to this standard is generally lower than that measured using the Human Body Model. Figure 3b shows the current ...
... Human Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2. Because series resistance is lower in the IEC1000-4-2 ESD test model (Figure 3a), the ESD withstand voltage measured to this standard is generally lower than that measured using the Human Body Model. Figure 3b shows the current ...
Simple Energy-Tripped Circuit Breaker with Automatic Delayed Retry
... A circuit breaker protects sensitive load circuits from excessive current flow by opening the power supply when the current reaches a predetermined level. The simplest circuit breaker is a fuse, but blown fuses require physical replacement. An electronic circuit breaker provides the same measure of ...
... A circuit breaker protects sensitive load circuits from excessive current flow by opening the power supply when the current reaches a predetermined level. The simplest circuit breaker is a fuse, but blown fuses require physical replacement. An electronic circuit breaker provides the same measure of ...
SKY65116: 390 to 500 MHz Linear Power Amplifier
... input and output match is realized off-chip within the module package to optimize efficiency and high power performance (P1 dB = +32.5 dBm) into a 50 load. Primary bias to the SKY65116 can be supplied directly from a single cell lithium-ion or other suitable battery with a nominal output of 3.6 V. ...
... input and output match is realized off-chip within the module package to optimize efficiency and high power performance (P1 dB = +32.5 dBm) into a 50 load. Primary bias to the SKY65116 can be supplied directly from a single cell lithium-ion or other suitable battery with a nominal output of 3.6 V. ...
Current Transducer CTSR 0.3-TP/SP14 I = 300 mA
... transducer. The output voltage Vout referred to Vref for a test current IT is below. Vout − Vref= Gth * IT (test current) * 20 To fullfill the standard IEC 62109-2 with the transducer, the test winding must be used to verify the accuracy of the transducer according to clause 4.4.4.15.1 and 4.8.3.5 ...
... transducer. The output voltage Vout referred to Vref for a test current IT is below. Vout − Vref= Gth * IT (test current) * 20 To fullfill the standard IEC 62109-2 with the transducer, the test winding must be used to verify the accuracy of the transducer according to clause 4.4.4.15.1 and 4.8.3.5 ...
BDTIC www.BDTIC.com/infineon Industrial and Multimarket
... Tailored to drive 0.1 W - 0.2 W LEDs Typical 3 % LED current accuracy Small Package: SOT343 ...
... Tailored to drive 0.1 W - 0.2 W LEDs Typical 3 % LED current accuracy Small Package: SOT343 ...
I-V PLOTS OF LIGHT EMITTING DIODES (LEDs)
... heated to a high temperature by an electric current that passes through it. The filament is enclosed in an evacuated glass envelope to avoid oxidation of the filament by the surrounding air. Most of the light emitted by an incandescent lamp is in the infrared and therefore is not visible. Incandesce ...
... heated to a high temperature by an electric current that passes through it. The filament is enclosed in an evacuated glass envelope to avoid oxidation of the filament by the surrounding air. Most of the light emitted by an incandescent lamp is in the infrared and therefore is not visible. Incandesce ...
AN-1992 LM27402 Evaluation Board (Rev. B)
... voltage range of 3V to 20V, input voltage feed-forward, and dual high current integrated N-channel MOSFET drivers make the LM27402 appropriate for high current intermediate bus system rails in point-ofload applications. A 0.6V ±1% internal voltage reference enables high accuracy and low voltage capa ...
... voltage range of 3V to 20V, input voltage feed-forward, and dual high current integrated N-channel MOSFET drivers make the LM27402 appropriate for high current intermediate bus system rails in point-ofload applications. A 0.6V ±1% internal voltage reference enables high accuracy and low voltage capa ...
MAX9938 1µA, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier General Description
... causing errors in the sense voltage. Either use a fourterminal current-sense resistor or use Kelvin (force and sense) PCB layout techniques. ...
... causing errors in the sense voltage. Either use a fourterminal current-sense resistor or use Kelvin (force and sense) PCB layout techniques. ...
MAX7302 SMBus/I C Interfaced 9-Port, Level-Translating GPIO and LED Driver with CLA
... MAX7302s. The external clock can be used to set a specific PWM and blink timing. The RST input asynchronously clears the 2-wire interface and terminates a bus lockup involving the MAX7302. All ports configured as an output feature a 33-step PWM, allowing any output to be set from fully off, 1/32 to ...
... MAX7302s. The external clock can be used to set a specific PWM and blink timing. The RST input asynchronously clears the 2-wire interface and terminates a bus lockup involving the MAX7302. All ports configured as an output feature a 33-step PWM, allowing any output to be set from fully off, 1/32 to ...
a CMOS Complete DDS AD9832
... any uncertainty, a change on FSELECT should not coincide with an MCLK rising edge. When the bit is being used to select the frequency register, the pin FSELECT should be tied to DGND. 11, 12 PSEL0, PSEL1 Phase Select Input. The AD9832 has four phase registers. These registers can be used to alter th ...
... any uncertainty, a change on FSELECT should not coincide with an MCLK rising edge. When the bit is being used to select the frequency register, the pin FSELECT should be tied to DGND. 11, 12 PSEL0, PSEL1 Phase Select Input. The AD9832 has four phase registers. These registers can be used to alter th ...
A Model Predictive Direct Current Control Strategy
... chosen case study, the switching frequency of the converter was approximately 1 kHz. In [29], a predictive current controller was proposed for a similarly rated NPC converter-based system, with the main advantage of the proposed strategy being improved performance in the presence of grid faults. Bot ...
... chosen case study, the switching frequency of the converter was approximately 1 kHz. In [29], a predictive current controller was proposed for a similarly rated NPC converter-based system, with the main advantage of the proposed strategy being improved performance in the presence of grid faults. Bot ...
A1205: Continuous-Time Bipolar Switch
... designs is solely determined by the application. Battery management is an example where continuous-time is often required. In these applications, VCC is chopped with a very small duty cycle ...
... designs is solely determined by the application. Battery management is an example where continuous-time is often required. In these applications, VCC is chopped with a very small duty cycle ...
Troubleshooting Low Voltage Measurement Problems - Techni-Tool
... or moving air. Wrapping connections in insulating foam (e.g., polyurethane) also minimizes ambient temperature fluctuations caused by air movement. Constructing circuits using the same material for all conductors further reduces thermoelectric EMF generation. For example, connections made by crimpin ...
... or moving air. Wrapping connections in insulating foam (e.g., polyurethane) also minimizes ambient temperature fluctuations caused by air movement. Constructing circuits using the same material for all conductors further reduces thermoelectric EMF generation. For example, connections made by crimpin ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.