Tips `n Tricks 3V
... An LDOs quiescent current, IQ, is the device ground current, IGND, while the device is operating at no load. IGND is the current used by the LDO to perform the regulating operation. The efficiency of an LDO can be approximated as the output voltage divided by the input voltage when IOUT>>IQ. However ...
... An LDOs quiescent current, IQ, is the device ground current, IGND, while the device is operating at no load. IGND is the current used by the LDO to perform the regulating operation. The efficiency of an LDO can be approximated as the output voltage divided by the input voltage when IOUT>>IQ. However ...
MAX1953/MAX1954/MAX1957 Low-Cost, High-Frequency, Current-Mode PWM Buck Controller General Description
... modulation (PWM) buck controllers. These step-down controllers are targeted for applications where cost and size are critical. The MAX1953 operates at a fixed 1MHz switching frequency, thus significantly reducing external component size and cost. Additionally, excellent transient response is obtaine ...
... modulation (PWM) buck controllers. These step-down controllers are targeted for applications where cost and size are critical. The MAX1953 operates at a fixed 1MHz switching frequency, thus significantly reducing external component size and cost. Additionally, excellent transient response is obtaine ...
MAX8727 TFT-LCD Step-Up DC-DC Converter General Description Features
... Detailed Description The MAX8727 is a highly efficient power supply that employs a current-mode, fixed-frequency, pulse-width modulation (PWM) architecture for fast transient response and low-noise operation. The device regulates the output voltage through a combination of an error amplifier, two co ...
... Detailed Description The MAX8727 is a highly efficient power supply that employs a current-mode, fixed-frequency, pulse-width modulation (PWM) architecture for fast transient response and low-noise operation. The device regulates the output voltage through a combination of an error amplifier, two co ...
Speedtronic Control Calibrator Handbook
... feature and by the fact that it is powered by the control to which it is connected. Its signal sources are universal types however; (such as millivolt, variable frequency, current and voltage) which may be used to calibrate special circuits that may be part of-a particular SPEEDTRONIC* control appli ...
... feature and by the fact that it is powered by the control to which it is connected. Its signal sources are universal types however; (such as millivolt, variable frequency, current and voltage) which may be used to calibrate special circuits that may be part of-a particular SPEEDTRONIC* control appli ...
Signal averaging Chapter 15 15.1 Measuring signals in the presence of noise
... of measurements and taking their average. This approach has the great advantage that it is easy to do — given enough time — but it cannot overcome all of the practical problems which arise when making real measurements. In particular, there are two sorts of problem which simple averaging copes with ...
... of measurements and taking their average. This approach has the great advantage that it is easy to do — given enough time — but it cannot overcome all of the practical problems which arise when making real measurements. In particular, there are two sorts of problem which simple averaging copes with ...
design_review
... discharge through the panels, we are using a LTC4412 (Low Loss PowerPath Controller in ThinSOT) combined with a PFET functions as an ideal diode providing only 20mV of forward voltage drop and low reverse voltage leakage. This provides better charging performance and better discharge performance. Fi ...
... discharge through the panels, we are using a LTC4412 (Low Loss PowerPath Controller in ThinSOT) combined with a PFET functions as an ideal diode providing only 20mV of forward voltage drop and low reverse voltage leakage. This provides better charging performance and better discharge performance. Fi ...
The Effect of the Distance Between Metal Spheres on the
... flowing towards a point should be equal to the amount of current flowing away from that point” (Kirchhoff’s circuit laws, 2009). Kirchhoff’s second circuit law, also known as Kirchhoff’s voltage law, states that “the sum potential difference (drop or gain) in a closed circuit is zero” (Kirchhoff’s c ...
... flowing towards a point should be equal to the amount of current flowing away from that point” (Kirchhoff’s circuit laws, 2009). Kirchhoff’s second circuit law, also known as Kirchhoff’s voltage law, states that “the sum potential difference (drop or gain) in a closed circuit is zero” (Kirchhoff’s c ...
Power Management Solutions
... operation the OVP switch acts as a slew-rate controlled load switch, connecting and disconnecting the power supply from IN to OUT. A low resistance N channel MOSFET is used to minimize the voltage drop between the voltage source and the load and to reduce the power dissipation. When the voltage on t ...
... operation the OVP switch acts as a slew-rate controlled load switch, connecting and disconnecting the power supply from IN to OUT. A low resistance N channel MOSFET is used to minimize the voltage drop between the voltage source and the load and to reduce the power dissipation. When the voltage on t ...
UT54ACS245S - Aeroflex Microelectronic Solutions
... 1. Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%, 50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified ...
... 1. Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%, 50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified ...
Definitions of voltage unbalance
... Vbc = 480 ∠ 221.4°, and Vca = 384∠124.2 ° are applied to an induction machine. The average value of the magnitudes will be (576 + 480 + 384)/3 = 480 V and the maximum deviation from average value is (576 - 480) = 96 V. Therefore, the NEMA definition of % voltage unbalance will be 100 ⭈ (96/480) = 20 ...
... Vbc = 480 ∠ 221.4°, and Vca = 384∠124.2 ° are applied to an induction machine. The average value of the magnitudes will be (576 + 480 + 384)/3 = 480 V and the maximum deviation from average value is (576 - 480) = 96 V. Therefore, the NEMA definition of % voltage unbalance will be 100 ⭈ (96/480) = 20 ...
Common-Mode Voltage Eliminated 2-level PWM Inverter
... H-bridge 5-level inverter is proposed to reduce common-mode voltage. But this method requires six isolated power supplies. A space vector PWM scheme for the complete elimination of alternating common-mode voltage in a dual inverter fed open end winding induction motor drive is proposed in [9]. Vecto ...
... H-bridge 5-level inverter is proposed to reduce common-mode voltage. But this method requires six isolated power supplies. A space vector PWM scheme for the complete elimination of alternating common-mode voltage in a dual inverter fed open end winding induction motor drive is proposed in [9]. Vecto ...
EUP8020X Dual Source AC/USB Li-Ion/Polymer Charger IC for Portable Applications
... (V(RCH)) and timeout fault occurs Recovery method: Under this scenario, the EUP8020X applies the I(FAULT) current. This small current is used to detect a battery removal condition and remains on as long as the battery voltage stays below the recharge threshold. If the battery voltage goes above the ...
... (V(RCH)) and timeout fault occurs Recovery method: Under this scenario, the EUP8020X applies the I(FAULT) current. This small current is used to detect a battery removal condition and remains on as long as the battery voltage stays below the recharge threshold. If the battery voltage goes above the ...
LM2524D/LM3524D Regulating Pulse Width Modulator
... The LM3524D family is an improved version of the industry standard LM3524. It has improved specifications and additional features yet is pin for pin compatible with existing 3524 families. New features reduce the need for additional external circuitry often required in the original version. The LM35 ...
... The LM3524D family is an improved version of the industry standard LM3524. It has improved specifications and additional features yet is pin for pin compatible with existing 3524 families. New features reduce the need for additional external circuitry often required in the original version. The LM35 ...
Evaluates: MAX8600/MAX8601 MAX8601 Evaluation Kit General Description Features
... a cell voltage below 3V is inserted, the charger enters the prequalification stage, precharging the cell with 10% of the user-programmed fast-charge current. Once the cell voltage rises above 3V, the charger softstarts into the fast-charge stage. The fast-charge current level is programmed with a re ...
... a cell voltage below 3V is inserted, the charger enters the prequalification stage, precharging the cell with 10% of the user-programmed fast-charge current. Once the cell voltage rises above 3V, the charger softstarts into the fast-charge stage. The fast-charge current level is programmed with a re ...
BD63536FJ
... To apply large drive currents, the wiring should be thick, short, and should have low impedance. Also when it comes to PWM switching noise, the current must be adjusted carefully so that VCC voltage will be stable. It is also possible to connect laminated ceramic capacitors at approximately 0.01µF t ...
... To apply large drive currents, the wiring should be thick, short, and should have low impedance. Also when it comes to PWM switching noise, the current must be adjusted carefully so that VCC voltage will be stable. It is also possible to connect laminated ceramic capacitors at approximately 0.01µF t ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The X-armscouple the inverter to a DC voltage source. The voltage source may be a battery, a diode rectifier or a fuel cell. This unique impedance network allows the Z-source inverter to buck or boost its output voltage, and also provides it with unique features that cannot be achieved in traditiona ...
... The X-armscouple the inverter to a DC voltage source. The voltage source may be a battery, a diode rectifier or a fuel cell. This unique impedance network allows the Z-source inverter to buck or boost its output voltage, and also provides it with unique features that cannot be achieved in traditiona ...
A LOW-COST RESISTIVIMETER FOR USE IN PRACTICAL
... to 110VAC/60Hz, the voltage multiplier circuit converts the obtained 110VAC into a DC voltage of approximately 560V. In the LV mode, the voltage multiplier is not used and the output voltage is obtained from the half-wave rectifier composed by D1 and C1. To avoid damage to the diodes by current surg ...
... to 110VAC/60Hz, the voltage multiplier circuit converts the obtained 110VAC into a DC voltage of approximately 560V. In the LV mode, the voltage multiplier is not used and the output voltage is obtained from the half-wave rectifier composed by D1 and C1. To avoid damage to the diodes by current surg ...
Voltage regulator
A voltage regulator is designed to automatically maintain a constant voltage level. A voltage regulator may be a simple ""feed-forward"" design or may include negative feedback control loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. In an electric power distribution system, voltage regulators may be installed at a substation or along distribution lines so that all customers receive steady voltage independent of how much power is drawn from the line.