POWER OPERATED LEVELS WHICH PROJECT

Brand	Owner	Address	Description
LASERPLUMBER	EMERGING TECHNOLOGIES, INC.	P.O. Box 8070 Jacksonville AR 72078	power-operated levels which project a laser dot for aligning pipes in plumbing and other industrial jobs;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An amplifier circuit responsive to a power mode signal improves efficiency at low power levels without compromising efficiency at high power levels. At low power levels, high impedance is presented with suitable adjustment in the phase of the signal. Also, providing for predistortion linearization improves high power efficiency and switching the predistortion linearizer OFF at low power levels contributes little more than a small insertion loss. The power amplifier also uses a bias circuit incorporating a dual harmonic resonance filter to provide high impedance at a fundamental frequency and low impedance at a second harmonic. These properties are of particularly advantageous since amplifiers in cell-phones are used in low power modes most of the time although they are designed to be most efficient at primarily the highest power levels.