Arduino Battery Shield
https://www.electronics-lab.com/arduino-battery-shield/
This instructable is about making battery shield for Arduino. Arduino Battery Shield – [Link]
4 Channel Triac Board
https://www.electronics-lab.com/4-channel-triac-board/
Opto-Isolated 4-Channel Triac Board (R) is used for fast switching applications. Ideal for switching mains circuits, lights, appliances and small load. Each circuit is effectively isolated with opto-isolators on each channel, TTL inputs control each channel. Trigger input 2-12 VDC Mains supply input 230 VAC or 110 VAC Output 1 A @ 230 VAC (RMS […]
4 Channel Triac Board
https://www.electronics-lab.com/project/4-channel-triac-board/
Opto-Isolated 4-Channel Triac Board (R) is used for fast switching applications. Ideal for switching mains circuits, lights, appliances and small load. Each circuit is effectively isolated with opto-isolators on each channel, TTL inputs control each channel. Trigger input 2-12 VDC Mains supply input 230 VAC or 110 VAC Output 1 A @ 230 VAC (RMS […]
Build an op amp with three discrete transistors
https://www.electronics-lab.com/build-an-op-amp-with-three-discrete-transistors/
by Lyle Russell Williams: You can use three discrete transistors to build an operational amplifier with an open-loop gain greater than 1 million (Figure 1). You bias the output at approximately one-half the supply voltage using the combined voltage drops across zener diode D1, the emitter-base voltage of input transistor Q1, and the 1V drop across […]
High Reliability, High Isolation Single-Pole-Double-Throw RF switch
https://www.electronics-lab.com/high-reliability-high-isolation-single-pole-double-throw-rf-switch/
In telecommunications, ideal RF switches require low insertion loss, high isolation and linearity. The IDT F2912 is a single-pole-double throw RF switch capable of having low insertion of loss of 0.4dB at 1GHz and a RF1 to RF2 Isolation of 74dB at 1GHz with extended temperature of -55C to +125C making it highly reliable. In […]
Data Logger Deluxe Version
https://www.electronics-lab.com/data-logger-deluxe-version/
An update on LuckyResistor’s data logger project: Just to let you know the deluxe version of the data logger is almost done. The hardware is ready and tested – currently I finish the menu based software for the data logger. Menu based control with 5 capacitive inputs Record, view records, send records to serial, erase […]
1A, 2 MHz, 60V boost/SEPIC/inverting DC/DC converter, 6µA Iq
https://www.electronics-lab.com/1a-2-mhz-60v-boostsepicinverting-dcdc-converter-6%c2%b5a-iq/
by Graham Prophet: LT8330 is a current mode, 2 MHz step-up DC/DC converter with an internal 1A, 60V switch. It operates from an input voltage range of 3V to 40V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs. The device can be configured as either a boost, […]
Freeze 75 – and you have a temperature under control
https://www.electronics-lab.com/freeze-75-and-you-have-a-temperature-under-control/
Freeze 75 spray will enable you to find faulty component or also to protect components from overheating during soldering. A device operates OK until it reaches stable operating temperature … a typical situation in praxis usually caused by a faulty component or faulty (cold) joint. Localization of such a fault is easy only if we […]
Measure small currents without adding resistive insertion loss
https://www.electronics-lab.com/measure-small-currents-without-adding-resistive-insertion-loss/
by Maciej Kokot @ edn.com: In most cases, you measure current by converting it into a proportional voltage and then measuring the voltage. Figure 1 shows two typical methods of making the conversion. In one method, you insert a probing resistor, RP, in series with the current path and use differential amplifier IC1 to measure the resulting […]
PCI-Express Clock Generator
https://www.electronics-lab.com/pci-express-clock-generator/
This reference design is a frequency generator for use in synchronizing a circuit’s operation. It consumes less than 50mW of power that specifically uses the IDT’s 9FGV0241 PCI-Express Clock Generator which is the lowest-power PCI Express timing family. It is a two output clock generator with programmable output amplitude allowing tuning for various application environments. […]