The heart of the device that [Kerry] designed is based on 6 power MOSFETs, a few operational amplifiers and an Arduino compatible ATmega328p microcontroller. Sense resistors are used to measure ...

Posted in LED Hacks Tagged constant current, driver, mosfet, transistor. Posts navigation. Newer posts ...

Testing power supplies and batteries requires current loads capable of sinking large current and dissipating substantial amounts of power. A simple but accurate current load can be built using just a ...

If delivering a constant current into the gate, the voltage at the gate is not a linear slope; it reaches a plateau during the time that the MOSFET is switching (Figure 1). This is called the “Miller ...

Unlike conventional resistive loads, the "dummy load" maintains a constant but adjustable load current for voltages in the range of 1.2 to 50 V. Both the power MOSFET and the sense resistor are ...

Central compares this with a 350mA JFET constant current diode with a limiting voltage of 1.9V that reaches its nominal current at 5V. “Using this data, it can be determined that the mosfet-based ...

This code supports Application Note AN1138: A Digital Constant Current Power LED Driver, using the PIC12HV615? an 8-pin, PIC microcontroller (MCU) with A Digital Constant Current Power LED Driver The ...

Power Integrations’ InnoSwitch-CP switching ICs are available from Mouser Electronics in two models — the 15W-output INN2214K and 20W-output INN2215K — both of which incorporate a flyback controller, ...

It uses a combination of variable frequency and variable current control, and has a frequency jittered oscillator. The secondary controller has multiple blocks including its link interface, ...

Delivering a ±3% current accuracy, the HV9967 open-loop, average-mode current control LED driver operates in a constant off-time mode and integrates a 60V, 0.8? MOSFET.