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The circuit is automatically converted to a low-voltage configuration. A 220V AC supply is stepped down by transformer T. After this, the breakdown voltage of diode VDw causes transistors VT1 and VT2 to turn off, resulting in the solid-state...
An article previously discussed connecting to the Raspberry Pi board from a Linux PC using the serial port. This time, the focus is on how to achieve the same connection using a Windows PC. In this case, a Windows...
It can be assumed that most 555 timer chips from various manufacturers are interchangeable due to their similar pin configurations. However, the programs or diagrams may simplify the pin arrangements, leading to potential confusion. Custom routing may be necessary...
The full wave phase control circuit below was found in a RCA power circuits book from 1969. The load is placed in series with the AC line and the four diodes provide a full wave rectified voltage to the...
Connect a 5-way button/joystick to an Arduino using a single analog pin to quickly simulate it for verification of calculations before soldering. The voltages for the six states are 0, 1, 2, 3, 4, and 5. The 4V displayed...
A low-cost solution for charging both NiCd and NiMH batteries is presented. The circuit diagram illustrates a universal charger designed for these battery types. The circuit for the low-cost universal charger for NiCd and NiMH batteries typically incorporates several key...
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