- Status Instruments
... Most analogue (4 to 20) mA loops are grounded at a single point to reduce noise. Problems can occur when there is more than one grounding point because earth potentials will not be the same, and currents will flow between earth points causing errors or noisy signals. If the (4 to 20) mA signal is c ...
... Most analogue (4 to 20) mA loops are grounded at a single point to reduce noise. Problems can occur when there is more than one grounding point because earth potentials will not be the same, and currents will flow between earth points causing errors or noisy signals. If the (4 to 20) mA signal is c ...
Calculating power factor
... Poor power factor can be corrected, paradoxically, by adding another load to the circuit drawing an equal and opposite amount of reactive power, to cancel out the effects of the load's inductive reactance. Inductive reactance can only be canceled by capacitive reactance, so we have to add a capacito ...
... Poor power factor can be corrected, paradoxically, by adding another load to the circuit drawing an equal and opposite amount of reactive power, to cancel out the effects of the load's inductive reactance. Inductive reactance can only be canceled by capacitive reactance, so we have to add a capacito ...
Circuit Analysis
... readings of Voltage and Current output. When using the power supplies, Current A. the power should remain off until the circuit is completed. B. the voltage output should be set to 0.0 V C. the current output should be set to ½ maximum Ground +V When the circuit is complete, then A. turn the power o ...
... readings of Voltage and Current output. When using the power supplies, Current A. the power should remain off until the circuit is completed. B. the voltage output should be set to 0.0 V C. the current output should be set to ½ maximum Ground +V When the circuit is complete, then A. turn the power o ...
NCL30051LEDGEVB - 35-50 Volt, Up to 1.5 Amp, Offline
... Operating bias (VCC) for the control IC U1 is derived from the low voltage auxiliary winding on boost choke L2. This is essentially a charge pump circuit comprised of R7, C8, Z1, D10 and VCC filter capacitors C15 and C16. The power factor correction circuit operates in critical (or boundary) conduct ...
... Operating bias (VCC) for the control IC U1 is derived from the low voltage auxiliary winding on boost choke L2. This is essentially a charge pump circuit comprised of R7, C8, Z1, D10 and VCC filter capacitors C15 and C16. The power factor correction circuit operates in critical (or boundary) conduct ...
RF5355 3.3V, 5GHz LINEAR POWER AMPLIFIER Features
... supply voltage and current are limited. This amplifier will operate to (and below) the lowest expected voltage made available by a typical PCMCIA slot in a laptop PC, and will maintain required linearity at decreased supply voltages. The RF5355 requires only a single positive supply of 3.3V nominal ...
... supply voltage and current are limited. This amplifier will operate to (and below) the lowest expected voltage made available by a typical PCMCIA slot in a laptop PC, and will maintain required linearity at decreased supply voltages. The RF5355 requires only a single positive supply of 3.3V nominal ...
AN9800: Total Power Conversion Solutions for Computer
... threshold, the regulator immediately shuts down all outputs and initiates a soft-start cycle. If the condition persists, the third shutdown latches the chip off. Cycling the bias voltage OFF and ON resets the protection circuitry. The linear regulator outputs employ a different method of over-curren ...
... threshold, the regulator immediately shuts down all outputs and initiates a soft-start cycle. If the condition persists, the third shutdown latches the chip off. Cycling the bias voltage OFF and ON resets the protection circuitry. The linear regulator outputs employ a different method of over-curren ...
Rod Control System Replacement Power Supplies Nuclear Automation Background
... The new power supplies slide into housings that permanently install on existing brackets or on the cabinet back panel. Rails in the housings guide the supply into engagement with an interior rear-mounted connector. No tools are needed to replace the power supply module. Replacement supplies are swit ...
... The new power supplies slide into housings that permanently install on existing brackets or on the cabinet back panel. Rails in the housings guide the supply into engagement with an interior rear-mounted connector. No tools are needed to replace the power supply module. Replacement supplies are swit ...
ZXLD383 Summary A Product Line of
... VOUT reaches the load LED’s forward (on) voltage, the inductor current is transferred from the internal switch to the LED, starting the energy discharge cycle. With the voltage across the inductor reversed, the current flowing through it (and the LED) now falls. When the inductor current reaches zer ...
... VOUT reaches the load LED’s forward (on) voltage, the inductor current is transferred from the internal switch to the LED, starting the energy discharge cycle. With the voltage across the inductor reversed, the current flowing through it (and the LED) now falls. When the inductor current reaches zer ...
Conext MPPT 60 150
... MPPT multi-stage charging, better battery life The ConextTM MPPT 60 150 is a PV charge controller that tracks the maximum power point of a PV array to deliver the maximum available current for charging batteries. When charging, the MPPT 60 150 regulates battery voltage and output current based on th ...
... MPPT multi-stage charging, better battery life The ConextTM MPPT 60 150 is a PV charge controller that tracks the maximum power point of a PV array to deliver the maximum available current for charging batteries. When charging, the MPPT 60 150 regulates battery voltage and output current based on th ...
High voltage power supplies t in electrostatic applications
... stated, as R2 changes impedance there is negligible effect on the current through R 1. Therefore, R1 and R2 have a constant current. In a single power supply application, this can be accomplished two ways. The first is to provide an external resistor as the current regulating device. The second is t ...
... stated, as R2 changes impedance there is negligible effect on the current through R 1. Therefore, R1 and R2 have a constant current. In a single power supply application, this can be accomplished two ways. The first is to provide an external resistor as the current regulating device. The second is t ...
The DatasheetArchive - Datasheet Search Engine
... Supply voltage, VCC + (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 V Supply voltage, VCC – (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Supply voltage, VCC + (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 V Supply voltage, VCC – (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
II. Characteristics Of Comparator 1. Minimum input slew rate: Slew
... 2. Propagation delay: It gives the difference between input V+ crossing the reference voltages V- and output changes its logic states. Delay of the comparator can be reduced by cascading the gain stages i.e delay of single high gain stage is far greater than the delay of several low gain stages. The ...
... 2. Propagation delay: It gives the difference between input V+ crossing the reference voltages V- and output changes its logic states. Delay of the comparator can be reduced by cascading the gain stages i.e delay of single high gain stage is far greater than the delay of several low gain stages. The ...
2 DIODE CLIPPING and CLAMPING CIRCUITS
... voltage, technically called “threshold voltage” and can be changed to a desired value by inserting a D.C. voltage source. This is achieved in two different ways. In the first type, the voltage source of Em ( positive or negative) is connected through output terminals as in Fig. 2.4. Depending on the ...
... voltage, technically called “threshold voltage” and can be changed to a desired value by inserting a D.C. voltage source. This is achieved in two different ways. In the first type, the voltage source of Em ( positive or negative) is connected through output terminals as in Fig. 2.4. Depending on the ...
AND8394 - Power Factor Corrected Power Supply for LED Drivers
... • Because the loop cannot regulate away the 100/120 Hz line ripple, it will appear as a ripple component on the output. For this circuit, the output ripple was in the order of $3% of the output voltage for full load using with three 680 mF output capacitors (see Figure 4). Additional output capacita ...
... • Because the loop cannot regulate away the 100/120 Hz line ripple, it will appear as a ripple component on the output. For this circuit, the output ripple was in the order of $3% of the output voltage for full load using with three 680 mF output capacitors (see Figure 4). Additional output capacita ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.