Circuits & Schematics Renesas

A stable voltage from an input supply that is higher and lower than the output is often required. A common solution is to use a boost converter followed by an LDO as shown in Figure 1. The boost converter is configured to accept voltages ranging ...

A signal’s peak is typically measured with a diode. But if the diode is used alone, the input voltage must be much larger than the diode’s turn-on voltage to obtain acceptable accuracy. Since turn-on voltages range from 200 mV in ...

This design was done to get a sealed keypad for very wet environments (in my particular case, showers for swimming pools). The keypad needed to be able to detect slight pressure on a stainless steel plate 0.4 mm thick. Apart from water protection, ...