Drivers for Coreless DC Motors ■ Features• Because it is a full software servo, it would not be affected by the environment such as temperature.• Synchronous Tracking Drive Circuit : It is possible to control with almost no accumulated error pulse (pulse pool). • Stable Positioning : Since it is integrated, stable and high-precision positioning is possible. • Single Power Source : Because it supplies only a single DC power source, a commercially available switching regulator battery can be used. • Multiplication Function in Encoder X 1, x 2, X4 multiplications are selectable by internal setting. • Protection Circuit Several Protection Circuits are installed to protect the motor. ■ Specifications Input Power Source

■ Operating Block Diagrams The diagrams below are operating block diagrams of the driver. Although it is not shown in the diagrams, the external input / output parts are isolated by a photocoupler. However, the encoder output is not isolated and so it is a line driver output. After removing noise, the external input will be transformed into waveform and then input to the controller. Pulse Pool Mode Integral Time Constant Command Pulse Current Control Proportional Gain Speed Loop Speed Feedback Current Feedback Derivative Time Constant Synchronous Tracking Mode ∫dt Command Pulse VR 3 Integral...