Inkjet printers may be a fairly inexpensive way to print out your holiday snaps, but they can be fragile machines and end up at the city dump well before they hit kindergarten age. Italian maker Michele Lizzit has designed a way to make use of spent printers to build an operational 3D printer for just €10.
 Energy-Saving Piezo Haptic Driver is the Touch Sensor's Best FriendSponsored by Maxim Integrated Haptic sensing technology, with its ability to render complex tactile experiences, is becoming popular in portable applications. Excessive power dissipation is a concern with current piezo haptic drivers' implementations. Although the piezoelectric actuator represents a capacitive load, considerable power is dissipated to drive it. This design solution reviews the shortcomings of current piezo haptic driver implementations and introduces a novel, regenerative, boost converter-based implementation that minimizes power dissipation, helping maximize the battery life of portables. |
