Title:
ELECTRONIC CIRCUIT DEVICE FOR POSITIVELY CLAMPING HIGH FREQUENCY RINGING IN SEMICONDUCTOR SWITCH
Document Type and Number:
Japanese Patent JPH03213011
Kind Code:
A
Abstract:
PURPOSE: To positively clamp high frequency ringing due to leaking inductance by removing almost high frequency component from a switching circuit, effectively executing rolling off for more than two poles and using a transistor for reducing the necessity of an electric connector filter. CONSTITUTION: Base current is supplied from high frequency noise to be snapped and a collector executes snapping. Low frequency current such as a basic switching frequency hardly generates current flowing in a capacitor namely, current flowing in the collector. High frequency ringing generates large base current and turns on the transistor and bypasses high frequency noise through the collector.
Inventors:
RONARUDO JIEI RENKU
Application Number:
JP34498689A
Publication Date:
September 18, 1991
Filing Date:
December 29, 1989
Export Citation:
Assignee:
HONEYWELL INC
International Classes:
H03K17/16; H03K17/64; (IPC1-7): H03K17/16; H03K17/64
Attorney, Agent or Firm:
Masaki Yamakawa (4 outside)