Stepper Motor Controller Using TDA2030
There are many version of stepper motor type, also the many version of stepper motor controller design. This circuit is…
12V 4A Solar Photovoltaic Battery Charger
This is the circuit diagram of 12 Volts, 4 Amperes Solar Photovoltaic (PV) battery charger which will be suit to…
Ding-Dong Door Bell
This ding-dong door bell circuit might become the simplest and cost-effective door bell circuit. The circuit is designed based on…
2KM Long Range FM Radio Transmitter
This long-range FM radio transmitter has an additional RF power amplifier stage, after the oscillator stage. The extra RF power…
Electronic Appliance Protector
This is a easy built and very low-cost circuit purposed to protect your electronic appliances / devices, such as Personal…
Stage Center Reverb Guitar Effect
This is the simple spring reverb guitar effect circuit that can be built low cost and just requires a minimal…
Infrared (IR) Cordless Headphone
This is the schematic diagram of Infrared (IR) cordless headphone. Maybe it also can be called "wireless headphone", but it…
Uninterruptible Power Supply with PIC17C43 Microcontroller
This is a MicroChip Uninterruptible Power Supply (UPS) reference design with PIC17C43 microcontroller. The document is available to download from…
2W RF Amplifier with MOSFET LF2810A
This is a 2W RF amplifier circuit build with single power MOSFET LF2810A. Figure A Figure A is the schematic…