DC-DC Converter in watch system

Claim 1

A DC to DC voltage converter comprIsing: a. one-shot multivibrator means responsive to an oscillatory input signal for generating a second signal comprising a series of one-shot signals having controlled pulsewidths; and b. a switching regulator coupled to said one-shot multivibrator means and adaptive to receive a supply voltage of a first magnitude for generating a DC output voltage of magnitude substantially greater than said first magnitude, said regulator including: i. a serially connected inductor, diode and capacitor combination such that the field of said inductor cyclically charges and collapses in response to said second signal and said capacitor charges in response to the collapse of said inductor field to provide said DC output voltage, ii. temperature compensation feedback means comprised of a set of unidirectionally series connected P-N junction devices coupling said capacitor to the input of said switching regulator for adjusting said output voltage in accordance with temperature changes, iii. a timing network comprised of first and second transistor means having commonly connected emitter terminals coupled at the input of said switching regulator to receive said second signal, and iv. a third input transistor means having its base coupled to receive said second signal, the emitter of said third transistor means being coupled to said set of unidirectionally series connected P-N junction devices, the collector of said third transistor means being coupled to a timing network, and the base of said second transistor means being coupled to the collector of said first transistor means.