Patent · US Expired

Circuit for supplying power, without the need for a battery, to the electronic control unit of a machine driven by an internal-combustion engine

US6172887A · kind A · utility

1Cited by

2References

8Claims

0Family size

Assignee

DOLMAR GmbH · DE

Inventors

Hartmut Klare · Benshausen, DE
Andreas Singer · Werdau, DE

Key dates

Filing date	Nov 9, 1997
Grant date	Jan 9, 2001
Priority date	—
Expiry date	Nov 9, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH02P9/305
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit arrangement (10) for the batteryless power supply of the electronic control of a portable machine driven by an internal combustion engine, which machine possesses a d.c. voltage generator driven by the internal combustion engine, which delivers a generated voltage dependent on the number of revolutions of the internal combustion engine, which is transferred to a rated d.c. voltage (Vcc). The circuit arrangement (10) includes a first rectifier circuit (D1, C1), which converts the generator voltage (Ug) into an intermediate d.c. voltage (Uz), which permits the same, without booster batteries, to reliably and controllably supply the electronics of an engine-driven machine, especially in the starting phase, with the requisite rated d.c. voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.