FAN5234 Dual Mobile-Friendly PWM / PFM Controller FA
... Since the tolerance on the current limit is largely dependent on the ratio of the external resistors, it is fairly accurate if the voltage drop on the switching node side of RSENSE is an accurate representation of the load current. When using the MOSFET as the sensing element, the variation of RDS(O ...
... Since the tolerance on the current limit is largely dependent on the ratio of the external resistors, it is fairly accurate if the voltage drop on the switching node side of RSENSE is an accurate representation of the load current. When using the MOSFET as the sensing element, the variation of RDS(O ...
Series and Parallel Circuit Worksheet
... 1. Calculate the total resistance for a 650 ohm, a 350 ohm, and a 1000 ohm resistor connected in series. 2. Calculate the total resistance for ten 120 ohm resistors in series. 3. A string of fifty 15 ohm Christmas tree lights are connected in series. One burns out, they all burn out. Calculate the t ...
... 1. Calculate the total resistance for a 650 ohm, a 350 ohm, and a 1000 ohm resistor connected in series. 2. Calculate the total resistance for ten 120 ohm resistors in series. 3. A string of fifty 15 ohm Christmas tree lights are connected in series. One burns out, they all burn out. Calculate the t ...
Solar Powered LED Street Lighting
... Isolation Required: YES – Prevent discharging the batteries ...
... Isolation Required: YES – Prevent discharging the batteries ...
MAX1708 High-Frequency, High-Power, Low-Noise, Step-Up DC-DC Converter General Description
... switching noise spectrum is constrained to the 600kHz fundamental and its harmonics, allowing easy postfiltering for noise reduction. External clock synchronization capability allows for even tighter noise spectrum control. Quiescent power consumption is less than 1mW to extend operating time in bat ...
... switching noise spectrum is constrained to the 600kHz fundamental and its harmonics, allowing easy postfiltering for noise reduction. External clock synchronization capability allows for even tighter noise spectrum control. Quiescent power consumption is less than 1mW to extend operating time in bat ...
IMH23
... VCE(sat) =40mV at IC / IB=50mA / 2.5mA, makes these transistors ideal for muting circuits. 4) These transistors can be used at high current levels, IC=600mA. Inner circuit 5) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equ ...
... VCE(sat) =40mV at IC / IB=50mA / 2.5mA, makes these transistors ideal for muting circuits. 4) These transistors can be used at high current levels, IC=600mA. Inner circuit 5) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equ ...
Review of Different Types of Over-Current Protection Circuits used in
... from over current. In recent years, more and more digital power amplifiers are used in all kinds of portable applications. Digital power amplifier achieves the higher power efficiency by using pulse width modulation (PWM), in theory, it can get a theoretical efficiency of 100% and practical efficien ...
... from over current. In recent years, more and more digital power amplifiers are used in all kinds of portable applications. Digital power amplifier achieves the higher power efficiency by using pulse width modulation (PWM), in theory, it can get a theoretical efficiency of 100% and practical efficien ...
AN1889
... deposited layers the DMOS structure is quite similar to that of a standard low voltage power MOSFET even if, of course, its layout is arranged to match the emitter geometry of the BJT stage. Finally the base contact are placed on a diffused layer deep enough to reach the base buried layer (PBL). As ...
... deposited layers the DMOS structure is quite similar to that of a standard low voltage power MOSFET even if, of course, its layout is arranged to match the emitter geometry of the BJT stage. Finally the base contact are placed on a diffused layer deep enough to reach the base buried layer (PBL). As ...
BDTIC C C M - P F C
... The IC operates with a cascaded control; the inner current loop and the outer voltage loop. The inner current loop of the IC controls the sinusoidal profile for the average input current. It uses the dependency of the PWM duty cycle on the line input voltage to determine the corresponding input curr ...
... The IC operates with a cascaded control; the inner current loop and the outer voltage loop. The inner current loop of the IC controls the sinusoidal profile for the average input current. It uses the dependency of the PWM duty cycle on the line input voltage to determine the corresponding input curr ...
Switched-Capacitor Voltage Converters _______________General Description ____________________________Features
... bucket capacitor C1 across V+ and charges C1. During the second half of each cycle, switches S2 & S4 close and switches S1 & S3 open, which connects the positive terminal of C1 to ground and shifts the negative terminal to VOUT. This connects C1 in parallel with the reservoir capacitor C2. If the vo ...
... bucket capacitor C1 across V+ and charges C1. During the second half of each cycle, switches S2 & S4 close and switches S1 & S3 open, which connects the positive terminal of C1 to ground and shifts the negative terminal to VOUT. This connects C1 in parallel with the reservoir capacitor C2. If the vo ...
Aalborg Universitet Wind Power Conversion System
... than a certain value. Therefore, in order to ensure that the input voltage of the VSI is high enough, a three-leg boost converter is employed. The installed topology lowers the current flowing through the IGBTs, and thereby mitigates the overheat problem of these devices. The control strategy of the ...
... than a certain value. Therefore, in order to ensure that the input voltage of the VSI is high enough, a three-leg boost converter is employed. The installed topology lowers the current flowing through the IGBTs, and thereby mitigates the overheat problem of these devices. The control strategy of the ...
AD7741
... External Clock Input. The master clock for the device can be provided in the form of a crystal or an external clock. A crystal may be tied across the CLKIN and CLKOUT pins. Alternatively, the CLKIN pin may be driven by a CMOS-compatible clock and CLKOUT left unconnected. The frequency of the master ...
... External Clock Input. The master clock for the device can be provided in the form of a crystal or an external clock. A crystal may be tied across the CLKIN and CLKOUT pins. Alternatively, the CLKIN pin may be driven by a CMOS-compatible clock and CLKOUT left unconnected. The frequency of the master ...
AN1307 Application Note
... tied to the +12 V rail through pull–up resistors. If the source voltage is greater than +12 V, a divider can be used to keep gate voltage on the P–Channels within reasonable limits. In the schematic, the mirror outputs of both SENSEFETs are tied together. They are then fed into the MC33033’s current ...
... tied to the +12 V rail through pull–up resistors. If the source voltage is greater than +12 V, a divider can be used to keep gate voltage on the P–Channels within reasonable limits. In the schematic, the mirror outputs of both SENSEFETs are tied together. They are then fed into the MC33033’s current ...
Data Sheet ACPL-798J Optically Isolated Sigma-Delta Modulator with LVDS Interface Description
... RoHS 6 fully compliant options available; -xxxE denotes a lead-free product ...
... RoHS 6 fully compliant options available; -xxxE denotes a lead-free product ...
Operating Manual
... general rule, unbalanced or single-ended (tip-sleeve) lines of less than 10 feet are satisfactory, but greater distances may require a balanced signal. Avoid running input lines in close proximity or parallel to long speaker lines, AC power cables, or power transformers, as this may generate hum or ...
... general rule, unbalanced or single-ended (tip-sleeve) lines of less than 10 feet are satisfactory, but greater distances may require a balanced signal. Avoid running input lines in close proximity or parallel to long speaker lines, AC power cables, or power transformers, as this may generate hum or ...
Electronics Questions
... 18. Draw a series circuit containing a battery a lamp and a resistor. Include a voltmeter and ammeter to measure the voltage across the lamp and the current in the lamp. 19. Draw the circuit symbol for a resistor. 20. Draw the circuit symbol for a variable resistor. 21. What energy change takes pla ...
... 18. Draw a series circuit containing a battery a lamp and a resistor. Include a voltmeter and ammeter to measure the voltage across the lamp and the current in the lamp. 19. Draw the circuit symbol for a resistor. 20. Draw the circuit symbol for a variable resistor. 21. What energy change takes pla ...
ADN4665 数据手册DataSheet 下载
... signaling. It takes a single-ended 3 V logic signal and converts it to a differential current output. The data can then be transmitted for considerable distances, over media such as a twisted pair cable or PCB backplane, to an LVDS receiver such as the ADN4666, where it develops a voltage across a t ...
... signaling. It takes a single-ended 3 V logic signal and converts it to a differential current output. The data can then be transmitted for considerable distances, over media such as a twisted pair cable or PCB backplane, to an LVDS receiver such as the ADN4666, where it develops a voltage across a t ...
ev pro 2k5
... The OPA234 series low-cost op amps are ideal for single-supply, low-voltage, low-power applications. The series provides lower quiescent current than older “1013”-type products and comes in current industrystandard packages and pinouts. The combination of low offset voltage, high common-mode rejecti ...
... The OPA234 series low-cost op amps are ideal for single-supply, low-voltage, low-power applications. The series provides lower quiescent current than older “1013”-type products and comes in current industrystandard packages and pinouts. The combination of low offset voltage, high common-mode rejecti ...
Evaluates: MAX1501 MAX1501 Evaluation Kit General Description Features
... MAX1501 charger enters the prequalification stage where it precharges the battery pack with 10% of the user-programmed fast-charge current. Once the cell has passed 2.8V, the charger enters the fast-charge stage where it increases the charging current by 10% steps every 20ms until the charger reache ...
... MAX1501 charger enters the prequalification stage where it precharges the battery pack with 10% of the user-programmed fast-charge current. Once the cell has passed 2.8V, the charger enters the fast-charge stage where it increases the charging current by 10% steps every 20ms until the charger reache ...
MAX1638 High-Speed Step-Down Controller with Synchronous Rectification for CPU Power General Description
... multi-input open-loop comparator that sums three signals (Figure 2): the buffered feedback signal, the current-sense signal, and the slope-compensation ramp. This direct-summing configuration approaches ideal cycle-by-cycle control over the output voltage. The output voltage error signal is generate ...
... multi-input open-loop comparator that sums three signals (Figure 2): the buffered feedback signal, the current-sense signal, and the slope-compensation ramp. This direct-summing configuration approaches ideal cycle-by-cycle control over the output voltage. The output voltage error signal is generate ...
Schmitt trigger
In electronics a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a ""trigger"" because the output retains its value until the input changes sufficiently to trigger a change. In the non-inverting configuration, when the input is higher than a chosen threshold, the output is high. When the input is below a different (lower) chosen threshold the output is low, and when the input is between the two levels the output retains its value. This dual threshold action is called hysteresis and implies that the Schmitt trigger possesses memory and can act as a bistable multivibrator (latch or flip-flop). There is a close relation between the two kinds of circuits: a Schmitt trigger can be converted into a latch and a latch can be converted into a Schmitt trigger.Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce. They are also used in closed loop negative feedback configurations to implement relaxation oscillators, used in function generators and switching power supplies.