03 Switch Mode
... An inductor – to store energy when the switch is closed and to discharge energy when the switch is open A capacitor – to store the energy from the inductor when the switch is closed and to provide energy to the load A diode – to govern the direction of the charging and discharging currents These sim ...
... An inductor – to store energy when the switch is closed and to discharge energy when the switch is open A capacitor – to store the energy from the inductor when the switch is closed and to provide energy to the load A diode – to govern the direction of the charging and discharging currents These sim ...
BuckBlock A009 - LUXdrive LED Drivers
... ideal for driving multiple strings of LEDs or high-power LED modules. A fast response current-sensing circuit permits the unit to be used in applications where flashing or pulsing of the LEDs is required. Several options are available allowing for use with many types of LEDs and in a variety of oper ...
... ideal for driving multiple strings of LEDs or high-power LED modules. A fast response current-sensing circuit permits the unit to be used in applications where flashing or pulsing of the LEDs is required. Several options are available allowing for use with many types of LEDs and in a variety of oper ...
Lab 7 – INDUCTORS AND LR CIRCUITS
... tight coil of many loops. Conventionally, a symbol like is used to represent an inductor. In the simplest case we can model an inductor as a long wire. In previous investigations we approximated the resistance of short wires to be zero ohms. We could justify such an approximation because the resista ...
... tight coil of many loops. Conventionally, a symbol like is used to represent an inductor. In the simplest case we can model an inductor as a long wire. In previous investigations we approximated the resistance of short wires to be zero ohms. We could justify such an approximation because the resista ...
Controlling switch-node ringing in synchronous
... in the upper FET, reducing efficiency. An RC snubber reduces the frequency and overshoot of ringing, but it requires two extra components and has low efficiency at light loads. Every power-supply design is unique, so each method should be inspected for its cost/benefit to the supply. Often, the best ...
... in the upper FET, reducing efficiency. An RC snubber reduces the frequency and overshoot of ringing, but it requires two extra components and has low efficiency at light loads. Every power-supply design is unique, so each method should be inspected for its cost/benefit to the supply. Often, the best ...
UPS Sentinel XR PLUS 5-10kVA
... suppress atmospheric interference • Advanced diagnostics: status, measurements and alarms available on the custom LCD display • Very low noise level (<40dBA): for installation in any environment thanks to the PWM digitally controlled ventilation that is load dependent, and the use of an inverter wit ...
... suppress atmospheric interference • Advanced diagnostics: status, measurements and alarms available on the custom LCD display • Very low noise level (<40dBA): for installation in any environment thanks to the PWM digitally controlled ventilation that is load dependent, and the use of an inverter wit ...
Current Measurement
... burden. The finished units might not have the number of secondary turns one would expect, but will nonetheless provide results accurate to a percent or so. They have laminations selected to minimize heating of the core. One will see ratings like 100:5, meaning 100 A in the primary will produce 5 A i ...
... burden. The finished units might not have the number of secondary turns one would expect, but will nonetheless provide results accurate to a percent or so. They have laminations selected to minimize heating of the core. One will see ratings like 100:5, meaning 100 A in the primary will produce 5 A i ...
DRV8871 3.6-A Brushed DC Motor Driver With Internal Current
... The DRV8871 device is an optimized 8-pin device for driving brushed DC motors with 6.5 to 45 V and up to 3.6A peak current. The integrated current regulation restricts motor current to a predefined maximum. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that h ...
... The DRV8871 device is an optimized 8-pin device for driving brushed DC motors with 6.5 to 45 V and up to 3.6A peak current. The integrated current regulation restricts motor current to a predefined maximum. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that h ...
LM3914 Dot/Bar Display Driver
... a very efficient display driver. Typical standby supply current (all LEDs OFF) is 1.6mA (2.5mA max). However, any reference loading adds 4 times that current drain to the V+ (pin 3) supply input. For example, an LM3914 with a 1mA reference pin load (1.3k), would supply almost 10mA to every LED while ...
... a very efficient display driver. Typical standby supply current (all LEDs OFF) is 1.6mA (2.5mA max). However, any reference loading adds 4 times that current drain to the V+ (pin 3) supply input. For example, an LM3914 with a 1mA reference pin load (1.3k), would supply almost 10mA to every LED while ...
EXPERIMENT 5
... obtained a value between 0.5Ω and 0.8Ω and if the transistor diode junction was reverse biased, the transistor would be in an “open-circuit” condition). ...
... obtained a value between 0.5Ω and 0.8Ω and if the transistor diode junction was reverse biased, the transistor would be in an “open-circuit” condition). ...
laser based intruder alarm
... Resistors are common elements of electrical networks and electronic circuits and are ubiquitous in most electronic equipment. Practical resistors can be made of various compounds and films, as well as resistance wire (wire made of a high-resistivity alloy, such as nickelchrome). Resistors are also i ...
... Resistors are common elements of electrical networks and electronic circuits and are ubiquitous in most electronic equipment. Practical resistors can be made of various compounds and films, as well as resistance wire (wire made of a high-resistivity alloy, such as nickelchrome). Resistors are also i ...
KD-10 (0.75 – 21.0 ohm)
... Older KD relays contain capacitors with PCB-contaminated electrolyte. Treat any spilled liquid from the capacitors as if it were PCB-contaminated. ...
... Older KD relays contain capacitors with PCB-contaminated electrolyte. Treat any spilled liquid from the capacitors as if it were PCB-contaminated. ...
Inverter topologies
... different small inverters. All the “inverters”, can ad or subtract to the wave form output. Inverter A will switch at 50 Hz. The transformer’s output voltage would be approximately 320V peak. Inverter B will switch at a frequency of approximately 500 Hz. This transformer’s output is approximately 15 ...
... different small inverters. All the “inverters”, can ad or subtract to the wave form output. Inverter A will switch at 50 Hz. The transformer’s output voltage would be approximately 320V peak. Inverter B will switch at a frequency of approximately 500 Hz. This transformer’s output is approximately 15 ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... energy at smooth sinusoidal voltage at the contracted magnitude level and frequency. However, in practice, power systems, especially the distribution systems, have numerous nonlinear loads, which significantly affect the quality of the power supply. As a result of these nonlinear loads, the purity o ...
... energy at smooth sinusoidal voltage at the contracted magnitude level and frequency. However, in practice, power systems, especially the distribution systems, have numerous nonlinear loads, which significantly affect the quality of the power supply. As a result of these nonlinear loads, the purity o ...
TPS40040 数据资料 dataSheet 下载
... to float high, and the TPS40040/1 remains OFF. Only when the EN pin is externally pulled below the threshold voltage of VDD - 1.2 V is the TPS40040/1 allowed to start. When enabled, the TPS40040/1 enters a calibration cycle where the short circuit current threshold is determined. The TPS40040/1 moni ...
... to float high, and the TPS40040/1 remains OFF. Only when the EN pin is externally pulled below the threshold voltage of VDD - 1.2 V is the TPS40040/1 allowed to start. When enabled, the TPS40040/1 enters a calibration cycle where the short circuit current threshold is determined. The TPS40040/1 moni ...
MAX16946 Evaluation Kit Evaluates: General Description Features
... The MAX16946 EV kit is an assembled and tested PCB used to evaluate the MAX16946 high-voltage, high-side, current-sense LDO/switch. The EV kit operates from a 4.5V to 18V DC supply voltage. The EV kit demonstrates the device’s open-drain fault signals (OL, SC), open-load and current-limiting thresho ...
... The MAX16946 EV kit is an assembled and tested PCB used to evaluate the MAX16946 high-voltage, high-side, current-sense LDO/switch. The EV kit operates from a 4.5V to 18V DC supply voltage. The EV kit demonstrates the device’s open-drain fault signals (OL, SC), open-load and current-limiting thresho ...
High-Performance Low-Voltage Operational
... 2. Differential voltages are at IN+ with respect to IN−. 3. All input voltage values must not exceed VCC. 4. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) − TA)/θJA. Selecting the maximum ...
... 2. Differential voltages are at IN+ with respect to IN−. 3. All input voltage values must not exceed VCC. 4. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) − TA)/θJA. Selecting the maximum ...
Electrical ballast
An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.