Title:
ELECTRODYNAMIC BRAKING DEVICE FOR A UNIVERSAL MOTOR
Document Type and Number:
WIPO Patent Application WO/2010/099787
Kind Code:
A3
Abstract:
An electrodynamic braking device for a universal motor is proposed, wherein during a braking operation a field winding is supplied from a network, and an armature is directly short-circuited, and a braking operation is carried out using a program of a controller of a control electronics system, whereby good braking is achieved with relatively low brush wear. Such an electrodynamic braking device is advantageously applied in a power tool equipped with a dangerous tool.
Inventors:
ROTTMERHUSEN HANS HERMANN (DE)
Application Number:
PCT/DE2010/000228
Publication Date:
April 19, 2012
Filing Date:
March 01, 2010
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
ROTTMERHUSEN HANS HERMANN (DE)
ROTTMERHUSEN HANS HERMANN (DE)
International Classes:
H02M5/22; H02P3/10; H02P3/08; H02P25/10
Domestic Patent References:
| WO1991003869A1 | 1991-03-21 | |||
| WO2005031963A1 | 2005-04-07 |
Foreign References:
| DE3428032A1 | 1986-01-30 | |||
| DE10317636A1 | 2004-11-25 | |||
| DE19912121A1 | 2000-09-28 |
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