Senquip devices can power external sensors even when input power is disconnected. The QUAD can generate an output voltage from 5V to 25V, and the ORB 12V; both from the internal 3.7V backup battery. We are often asked how this is possible.
Senquip uses a boost converter, also called a step-up converter, that converts a low DC voltage to a higher DC voltage. Think of it as a DC transformer. By storing energy in an inductor during a “switch-on” phase and then releasing that energy through a diode to a capacitor during the “switch-off” phase, we can boost the voltage by adding the inductor voltage to the input voltage.
If you would like to know more about boost converters, Wikipedia has a great introduction.
