Energy Saving of Conservation Voltage Reduction Based on Load
... include time-controlled capacitors and voltage-controlled capacitors. With technological development, decisions can be made by coordinated control where measurements and model information are used to decide optimum settings for local controllers. Local controllers for switched capacitors, voltage re ...
... include time-controlled capacitors and voltage-controlled capacitors. With technological development, decisions can be made by coordinated control where measurements and model information are used to decide optimum settings for local controllers. Local controllers for switched capacitors, voltage re ...
LTC6905.pdf
... using the minimum high level output voltage in the Electrical Characteristics. With a V+ equal to 5.5V and 4mA output current, the minimum high level output voltage is 5V and the lowest resistive load Pin 5 can drive is 1.25k (5V/4mA). With a V+ equal to 2.7V and 4mA output current, the minimum high ...
... using the minimum high level output voltage in the Electrical Characteristics. With a V+ equal to 5.5V and 4mA output current, the minimum high level output voltage is 5V and the lowest resistive load Pin 5 can drive is 1.25k (5V/4mA). With a V+ equal to 2.7V and 4mA output current, the minimum high ...
Marine Electrical Knowledge
... bulk power to motor starter groups (often part of the main board), section boards and distribution boards. Transformers interconnect the HV and LV distribution sections of the system. Circuit breakers and fuses strategically placed troughout the system automatically disconnects a faulty circuit with ...
... bulk power to motor starter groups (often part of the main board), section boards and distribution boards. Transformers interconnect the HV and LV distribution sections of the system. Circuit breakers and fuses strategically placed troughout the system automatically disconnects a faulty circuit with ...
Power Supply Measurement and Analysis
... adjustable duty cycle, edge transition times, and frequency. To drive IGBT devices, the stimulus must also be able to generate the required voltage of typically 12 V to 15 V. The oscilloscope must, of course, have the basic bandwidth and sample rate to handle the switching frequencies within an SMPS ...
... adjustable duty cycle, edge transition times, and frequency. To drive IGBT devices, the stimulus must also be able to generate the required voltage of typically 12 V to 15 V. The oscilloscope must, of course, have the basic bandwidth and sample rate to handle the switching frequencies within an SMPS ...
Document
... are sold as complete packages containing the two transistors. They have three leads (B, C and E) which are equivalent to the leads of a standard individual transistor. The overall current gain is equal to the two individual gains multiplied together: Darlington pair current gain, hFE = hFE1 × hFE2 ( ...
... are sold as complete packages containing the two transistors. They have three leads (B, C and E) which are equivalent to the leads of a standard individual transistor. The overall current gain is equal to the two individual gains multiplied together: Darlington pair current gain, hFE = hFE1 × hFE2 ( ...
CoolRunner-II I/O Characteristics Summary
... and Table 6 show typical rise and fall times for 1.8V, 2.5V, and 3.3V I/O operation using both fast and slow slew rate settings. The rise/fall times, denoted in nanoseconds (ns), are equal to ...
... and Table 6 show typical rise and fall times for 1.8V, 2.5V, and 3.3V I/O operation using both fast and slow slew rate settings. The rise/fall times, denoted in nanoseconds (ns), are equal to ...
MSC8122 and MSC8126 Power Circuit Design Recommendations
... Note: In the following sections, every reference to VDD also applies to VCCSYN. Note: Make sure that VDD is never greater than 0.8 V higher than VDDH during the power-up sequence. If the VDD – VDDH > 0.8 V, current can flow from the VDD supply to the VDDH supply through the ESD protection circuit. U ...
... Note: In the following sections, every reference to VDD also applies to VCCSYN. Note: Make sure that VDD is never greater than 0.8 V higher than VDDH during the power-up sequence. If the VDD – VDDH > 0.8 V, current can flow from the VDD supply to the VDDH supply through the ESD protection circuit. U ...
SOPs: PHYSICS PRACTICAL EXERCISES OF UNDERGRADUATE
... consequently has a major effect on the voltages developed across the capacitor and inductor as well as the “tightness” of the voltage versus frequency curve: The smaller the resistance, the tighter the curve and the higher the voltage seen across the capacitor and inductor. The Q of the circuit can ...
... consequently has a major effect on the voltages developed across the capacitor and inductor as well as the “tightness” of the voltage versus frequency curve: The smaller the resistance, the tighter the curve and the higher the voltage seen across the capacitor and inductor. The Q of the circuit can ...
II
... efficiency are considered. First of all, an antenna with ηMBE = 90 % senses an ice floe on the surface of the sea. The ice floe is just the size of the area on the ground illuminated by the main beam. Assuming typical values - TMBE (ice) = 270 K and TSL (sea) = 100 K, and no ohmic losses (ηr = 0), t ...
... efficiency are considered. First of all, an antenna with ηMBE = 90 % senses an ice floe on the surface of the sea. The ice floe is just the size of the area on the ground illuminated by the main beam. Assuming typical values - TMBE (ice) = 270 K and TSL (sea) = 100 K, and no ohmic losses (ηr = 0), t ...
ppt
... Phase: The relation of a periodic waveform to its initial value expressed in factorial parts of the complete cycle. Usuall expressed as an angular measurement (0-360 degrees or 0-2*pi) Stationary signals: Signals which maintain the same parameters over time. The FFT does not work well on non-station ...
... Phase: The relation of a periodic waveform to its initial value expressed in factorial parts of the complete cycle. Usuall expressed as an angular measurement (0-360 degrees or 0-2*pi) Stationary signals: Signals which maintain the same parameters over time. The FFT does not work well on non-station ...
SOUNDCRAFT CPS250 CPS275 Console Power Supply
... protection system; brief overloads are dealt with by constant-current protection, while prolonged overload causes both 17V rails to shutdown. Reset is by turning the mains power off for not less than 6 seconds. ...
... protection system; brief overloads are dealt with by constant-current protection, while prolonged overload causes both 17V rails to shutdown. Reset is by turning the mains power off for not less than 6 seconds. ...
High Current Power Supply, Cat. No. BT406
... this section. The Programmable Mode allows you to vary levels in voltage (V), current (mA), and power (W) during specified periods of time as discrete changes (STEP) or as gradients (RAMP) for up to 6 Steps, depending upon your electrophoresis needs. The High Current power supply is capable of havin ...
... this section. The Programmable Mode allows you to vary levels in voltage (V), current (mA), and power (W) during specified periods of time as discrete changes (STEP) or as gradients (RAMP) for up to 6 Steps, depending upon your electrophoresis needs. The High Current power supply is capable of havin ...
© This item is protected by original copyright
... with ATP simulation for validation. Alternative Transient Program (ATP-EMTP) was employed to reproduce the switching operation of MSCDN, as ATP gives solution in time domain and very useful for comparisons with analytical method conducted in this work. For single phase, it was found that the ideal s ...
... with ATP simulation for validation. Alternative Transient Program (ATP-EMTP) was employed to reproduce the switching operation of MSCDN, as ATP gives solution in time domain and very useful for comparisons with analytical method conducted in this work. For single phase, it was found that the ideal s ...
Digital Input/Output Interface Card "OPC-DIO"
... (1) Frequency can be set with a setting method for all frequencies set with function code o20. In this case, terminal I13 is a hold input signal. Furthermore, frequency settings can be given polarity with o19. Refer to the respective inverter user's manuals for details. (2) These terminals can be us ...
... (1) Frequency can be set with a setting method for all frequencies set with function code o20. In this case, terminal I13 is a hold input signal. Furthermore, frequency settings can be given polarity with o19. Refer to the respective inverter user's manuals for details. (2) These terminals can be us ...
a CMOS, Low Voltage RF/Video, SPST Switch ADG751
... inductance and capacitance. The part should be soldered directly to a printed circuit board. A ground plane should cover all unused areas of the component side of the board to provide a low impedance path to ground. Removing the ground planes from the area around the part reduces stray capacitance. ...
... inductance and capacitance. The part should be soldered directly to a printed circuit board. A ground plane should cover all unused areas of the component side of the board to provide a low impedance path to ground. Removing the ground planes from the area around the part reduces stray capacitance. ...
Switching Low Offset Voltage
... Designing a 2 pole vs a 1 pole low offset voltage relays are quite different. Generally coil resistance must be as high a value as possible. The higher the coil resistance the lower the power generated across the coil. The lower the coil power the lower the heat it produces. This means we must caref ...
... Designing a 2 pole vs a 1 pole low offset voltage relays are quite different. Generally coil resistance must be as high a value as possible. The higher the coil resistance the lower the power generated across the coil. The lower the coil power the lower the heat it produces. This means we must caref ...
Document
... protect against dust, oil, explosion hazards and weather. A basic contactor will have a coil input (which may be driven by either an AC or DC supply depending on the contactor design). The coil may be energized at the same voltage as the motor, or may be separately controlled with a lower coil ...
... protect against dust, oil, explosion hazards and weather. A basic contactor will have a coil input (which may be driven by either an AC or DC supply depending on the contactor design). The coil may be energized at the same voltage as the motor, or may be separately controlled with a lower coil ...
Universal motor
... Another method is by using a tapped field , thereby reducing the flux and hence raising the speed . This can be achieved by any one of the methods that follow : • By using field poles wound in various sections with wires of different size and bringing out the taps from each section . • By using tapp ...
... Another method is by using a tapped field , thereby reducing the flux and hence raising the speed . This can be achieved by any one of the methods that follow : • By using field poles wound in various sections with wires of different size and bringing out the taps from each section . • By using tapp ...
MT-032 TUTORIAL Ideal Voltage Feedback (VFB) Op Amp
... two input terminals, one of which inverts the phase of the signal, the other preserves the phase, and an output terminal. The standard symbol for the op amp is given in Figure 1. This ignores the power supply terminals, which are obviously required for operation. ...
... two input terminals, one of which inverts the phase of the signal, the other preserves the phase, and an output terminal. The standard symbol for the op amp is given in Figure 1. This ignores the power supply terminals, which are obviously required for operation. ...
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.