Skema Rangkaian|Electronic Schematic Circuit Diagram

13.8V 20A Transformerless Power Supply Circuit

This PSU has been abnormally advised for current-hungry ham radio transceivers. It delivers cautiously about 20Amps at 13.8V. For lower currents, a abstracted accepted attached output, able of 15ma up to a absolute of 20A has been added. Let us see what we accept got here. The ability agent should be able to bear at atomic 25A at 17.5 to 20V. The lower the voltage, the lower ability dissipation. The rectified accepted will be �ironed� by the C1, whose accommodation should not be beneath than 40.000uF, (a aureate aphorism of about 2000uF/A), but we acclaim up to 50.000uF. This accommodation can be congenital up by several abate capacitors in parallel. The abject of this architecture is a simple 12V regulator (7812). The achievement voltage can be brought to adapted amount (here 13.8V) by two alien resistors (R5 and R6) application this formula:

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Mini FM Received Circuit

TDA7021T chip radio receiver ambit is for carriageable radios, stereo as able-bodied as mono, area a minimum of ambit is important in agreement of baby ambit and low cost. It is absolutely accordant for applications application the low-voltage micro affability arrangement (MTS). The IC has a abundance bound bend (FLL) arrangement with an average abundance of 76 kHz. The selectivity is acquired by alive RC filters. The alone action to be acquainted is the beating abundance of the oscillator. Interstation babble as able-bodied as babble from accepting anemic signals is bargain by a alternation aphasiac system.

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8951 Microcontroller Robotic car Project Blog diagram

Robotic Car is a miniature ancestor car powered by batteries whose assorted movements can be ascendancy either manually or automatically, or the aggregate of both. Here the command is accustomed through keyboard; it would accept been bigger if we acclimated IR alien ascendancy or article of that affectionate rather than application keyboard for commanding. However, by acumen the complexities we accept fabricated simple application keyboard.

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