Digital interface circuit for programmable controller of activation electromagnetic vibrator

• Main Authors: GUO JUN, QIU JIANGXIN
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2009
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PERFORMING OPERATIONS; PHYSICS; REGULATING; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING

The utility model discloses a programmable controller digital interface circuit for driving electromagnetic shakers, which aims to solve the problems that the prior interface circuit for the driving electromagnetic shakers can not regulate coil current and the like. The interface circuit adopts a decoding circuit (2), a frequency-voltage converting circuit (4) and a signal acquisition circuit (5). Network voltage signals are divided into signals in two grades via the signal acquisition circuit (5) and are transmitted to a programmable controller (1) as control parameters. The programmable controller (1) transmits a part of the signals to the decoding circuit (2) so as to be transformed into gating signals, transmits the other part of the signals to the frequency-voltage converting circuit (4) so as to be transformed into phase control signals, and triggers a silicon controlled rectifier (3) so as to control shaking height by controlling the conducting time of the silicon controlled rectifier (3). Therefore, t