Buck-Boost (Switch Mode) Regulator Provides 12V from 5-35V Supply

This is positive buck-boost regulator circuit. Using this circuit, we can implement a step-down/up converter with a positive output voltage. This circuit produces an output voltage of 12 V. Here is the circuit : This circuit requieres input voltage between 5 V and 35V. The output voltage is given by Vo=Vin·D/(1-D).  The maximum output current is Iout=1x(1-D). The term (1-D) […]

Read more

Self Powered Current Sensing

This is a current sensing circuit that senses the current at the high side (between load and positive supply). This circuit     take advantage from Rail-to-Rail input of the LT1494 and the microampere supply current. Here is the circuit : At the op-amp, the output is connected directly to the inverting input that will keep the inverting input is equal to […]

Read more

Super Simple Inverter

This is example of a simple inverter that can be used to power fluorescent lamp and a small strobe. This circuit will produce over 400VDC from a 12 VDC, 2.5 A power supply or marine battery or an auto. This circuit is very simple because it does not require custom transformers or coils. Also all components are readily available. Here […]

Read more
1 20 21 22 23 24 26