This circuit is a simple battery-powered switching regulator provides 5V out from a 9V source with 80% efficiency and 50-mA output capability. When Q1 is oon , its collector voltage rises , forcing current trhough the iinductor. The output voltage rises , causing A1's output to rise . Q1 cutts off and the output drops low enough for A1 to turn Q1. The 1 uF capacitor ensures low battery impedance at high frequencies , preventing sag during switching. See schematic diagram below :
Related Posts :
LM338 Adjustable power supply circuit
-15 Volt output regulated power supply circuit
9V output switching power supply
Tube Power Amplifier 35W Push Pull
Low power switching regulator
+15 V output regulated power supply circuit with uA723 and 2N3055
Power supply circuit suitable with high power amplifier
Low ripple power supply schematic
Low Forward Drop Rectifier schematic
12V to 220V converter circuit
High current output switching power supply
Versatile and simple power supply
Voltage regulator with LT1086
Voltage Doubler with NE555 timer chip
Regulator power supply with op-amp
Dual Tracking regulator circuit
LM4651 and LM4652 170W power amplifier
Toggle Switch with IR
Tranceiver DC adapter
5V 10A output switching power supply
0 Response to "Low power switching regulator"
Post a Comment