LTC4380 – Low Quiescent Current Surge Stopper
https://www.electronics-lab.com/48785-2/
The LTC4380 is an ultralow quiescent current (IQ) surge stopper, providing compact overvoltage and overcurrent protection for always-on 4V to 72V electronics in automotive, industrial and avionic systems. The LTC4380 replaces traditional shunt circuits composed of bulky inductors, capacitors, transient voltage suppressors (TVS), and fuses with a simple IC and series N-channel MOSFET solution, saving […]
Half Bridge Driver based on IR2104
https://www.electronics-lab.com/half-bridge-driver-based-ir2104/
This Half-bridge driver based on IR2104 gate driver IC and N channel Dpak MOSFET , The IR2104 is a high voltage, high speed power MOSFET driver with independent high and low side referenced output channels. HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard COMOS or LSTTL […]
1″ 100W Hot-Plate for SMT Reflow
https://www.electronics-lab.com/1%e2%80%b3-100w-hot-plate-for-smt-reflow/
This is a small hot-plate for SMT reflow soldering build upon an Arduino Pro and controlled using PWM and high side power MOSFETs. Black Mesa Labs has been using a $20 hot plate for a year now for soldering QFN ICs to PCBs. Only issue so far has been the size ( 10″x10″x3″ ) and […]
Control a High Power 4W COB LED with Arduino Uno
https://www.electronics-lab.com/control-a-high-power-4w-cob-led-with-arduino-uno/
educ8s.tv has published a new Arduino Video tutorial: High Power LEDs are very popular and low cost nowadays so I thought it would be a good idea to learn how control them with Arduino. So, I built a simple project that simply turns on a 4W Cob LED when the button is pressed. When the […]
PWM Halogen Lamp Dimmer
https://www.electronics-lab.com/pwm-halogen-lamp-dimmer/
High Current PWM Halogen Dimmer controller project is designed around SG3525 IC and High current MOSFET. Project can handle lamp up to 5 Amps (10Amps Possible with big heat sink) and supply 12-24V DC .Ideal for Halogen Dichroic Lamp or Halogen Lamp. Specifications Supply input 15 to 24 VDC Load-Lamp 12 to 24 VDC @ […]
DRV8871 – 3.6A Brushed DC Motor Driver
https://www.electronics-lab.com/drv8871-3-6a-brushed-dc-motor-driver/
The DRV8871 is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of […]
LTC4282 – High Current Hot Swap Controller with I2C Compatible Monitoring
https://www.electronics-lab.com/ltc4282-high-current-hot-swap-controller-with-i2c-compatible-monitoring/
The LTC4282 is an energy monitoring Hot Swap controller with dual MOSFET drive to enable 100A and higher current board designs. The LTC4282 ensures safe board insertion and removal from live 2.9V to 33V backplanes by controlling external Nchannel MOSFETs to gently power up capacitors, avoiding sparks, connector damage and system glitches. High current […]
Basic Types of Transistors
https://www.electronics-lab.com/article-basic-transistor-types/
In this article we will review the basic transistor types and their function. We will cover bipolar transistor, Junction FET, MOSFET and UJT transistor types. Feel free to comment with other transistor types you know. Bipolar Transistor Bipolar transistors are three terminal devices and act like electrically controlled switches of as current/voltage amplifiers. They come […]
Teardown, Repair & Analysis of a Rohde & Schwarz FSH3 3.0GHz Portable Spectrum Analyzer
https://www.electronics-lab.com/teardown-repair-analysis-of-a-rohde-schwarz-fsh3-3-0ghz-portable-spectrum-analyzer/
In this episode Shahriar examines a faulty R&S FSH3 100kHz – 3.0GHz Portable Spectrum Analyzer. This exceptionally dirty unit does not power on and is missing a power supply and battery. After verifying the correct operation of the battery charger circuit and keypad the problem is traces to a damaged SOT-23-6 MOSFET device which is […]
Narrowband RF Power Amplifier (520MHz)
https://www.electronics-lab.com/narrowband-rf-power-amplifier-520mhz/
The RF power amplifier stage is usually the final active block of any electronic system that is transmitting RF power. Relatively low power RF signals are amplified to produce a more powerful signal in order to be transmitted over greater distance. RF output power can range from a few mW to MW, depend by application. […]