Abstract: A controller for a power converter includes: a first sense terminal and a second sense terminal for sensing an output voltage of the power converter; a bridging circuit configured to electrically couple the first sense terminal to the second sense terminal in a first state and electrically decouple the first sense terminal from the second sense terminal in a second state; and control circuitry configured to set the bridging circuit in the first state during a portion of a voltage ramp of the power converter, and to determine whether an open or short fault condition is present at either the first sense terminal or the second sense terminal based on a voltage across the bridging circuit in the first state.

Abstract: A controller for a power converter includes: a first sense terminal and a second sense terminal for sensing an output voltage of the power converter; a bridging circuit configured to electrically couple the first sense terminal to the second sense terminal in a first state and electrically decouple the first sense terminal from the second sense terminal in a second state; and control circuitry configured to set the bridging circuit in the first state during a portion of a voltage ramp of the power converter, and to determine whether an open or short fault condition is present at either the first sense terminal or the second sense terminal based on a voltage across the bridging circuit in the first state.

Abstract: A connecting device for connecting a pellet chamber to a gearbox, includes an adapting disc and an annular adapter. The adapting disc has a front side fixedly connected with the pellet chamber, a rear side fixedly connected with a front side wall of the gearbox, and a through hole disposed at a middle part. The power of the gearbox is outputted from the through hole of the adapting disc. The annular adapter is laminated around the through hole of the adapting disc from the front side of the adapting disc, and fixedly connected with the front side wall of the gearbox. The adapting disc uniformly distributes the gravity of the pellet chamber and the impact force from the pellet chamber to the front side wall of the gearbox, thereby avoiding the gearbox from being broken due to impact.

Abstract: A granulator shear pin safety mechanism includes a shear pin housing disposed on a granulator frame or a gear box, a shear pin flange covered on an end surface of the shear pin housing, a shear pin disposed between the housing and the flange, a limit switch disposed on the housing, and a shear pin shroud hinged with the housing. The housing is penetrated by a main shaft of the granulator, the flange is connected to the main shaft, and the shear pin shroud covers a terminal of the main shaft. The limit switch is connected to a power control device. When the limit switch detects that a rotation displacement occurs for the flange, the power control device stops the granulator. A granulator shear pin safety mechanism have a two-piece shear pin shroud, suitable for a granulator having a remote roll adjust drive.

Abstract: A connecting device for connecting a pellet chamber to a gearbox, includes an adapting disc and an annular adapter. The adapting disc has a front side fixedly connected with the pellet chamber, a rear side fixedly connected with a front side wall of the gearbox, and a through hole disposed at a middle part. The power of the gearbox is outputted from the through hole of the adapting disc. The annular adapter is laminated around the through hole of the adapting disc from the front side of the adapting disc, and fixedly connected with the front side wall of the gearbox. The adapting disc uniformly distributes the gravity of the pellet chamber and the impact force from the pellet chamber to the front side wall of the gearbox, thereby avoiding the gearbox from being broken due to impact.