Circuit Diagram Simple Uninterruptible Power Supply (UPS)

Electronicindex. - There are many electronic circuit diagram to build Uninterruptible Power Supply (UPS). One is like in figure 1 below. This is Circuit Diagram Simple Uninterruptible Power Supply (UPS).

Circuit Diagram

Figure 1. Circuit Diagram Simple Uninterruptible Power Supply (UPS) +5Volt (Circuitstoday)

Component Part

  1. Transformator
  2. Bridge Diodes
  3. Capacitors
  4. Resistors
  5. LED
  6. Diodes
  7. IC 7805


Circuit diagram like in figure 1 above is Circuit Diagram Simple Uninterruptible Power Supply (UPS) +5Volt. According Circuitstoday site describe that this is the circuit diagram of a simple UPS that can deliver 12V unregulated and 5V regulated DC. The transformer T1 steps down the mains voltage to 12V AC and then the bridge B1 rectifies it. The rectified signal is smoothed by the capacitor C1.When the mains supply is available the battery will be charged via diode D3 and the regulator IC gets supply via diode D5. 12V and 5V DC will be available at the output terminals. When mains supply is not available the battery supplies current to the regulator IC and to the 12V DC terminal through diode D4.Also, the diode D3 blocks reverse flow of current during battery mode. Capacitors C2 and C3 acts as filters.

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