EP 0233191 B1 19890823 - CIRCUIT FOR REGULATING THE HIGH-VOLTAGE SUPPLY OF AN ELECTROSTATIC FILTER
Title (en)
CIRCUIT FOR REGULATING THE HIGH-VOLTAGE SUPPLY OF AN ELECTROSTATIC FILTER
Publication
Application
Priority
DE 3531025 A 19850830
Abstract (en)
[origin: WO8701306A1] Circuit for regulating the high-voltage supply of an electrostatic filter for internal combustion engines, in which the high-voltage end stage (2) is controlled by a pulse width modulator (3). The high-voltage end stage (2) comprises a diode blocking oscillator-type converter which on the output side supplies an output voltage (UA) of several kV. The pulse-width repetition rate of the output voltage (UA) is modified as a function of the output current or output voltage, and taking into account a maximum permissible power. In this way the soot filter (1) can always work in an optimum operating range.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B03C 3/68 (2013.01 - EP US); Y10S 323/903 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 8701306 A1 19870312; DE 3531025 A1 19870305; DE 3665136 D1 19890928; EP 0233191 A1 19870826; EP 0233191 B1 19890823; JP S63500706 A 19880317; US 4816979 A 19890328
DOCDB simple family (application)
DE 8600178 W 19860430; DE 3531025 A 19850830; DE 3665136 T 19860430; EP 86902787 A 19860430; JP 50257686 A 19860430; US 4585187 A 19870428