Abstract: A control circuit for an isolated power supply is disclosed, the control circuit includes a secondary-side drive signal generator, a secondary-side transistor switch turn-off detector and a primary-side control signal generator. The primary-side control signal generator is configured to: determine a second turn-on instant referring to an turn-off instant of the secondary-side synchronous rectification transistor from the turn-off acknowledgement signal; determine a first turn-on instant referring to a supposed turn-on instant for the primary-side transistor switch from the feedback signal of the output voltage of the isolated power supply; and determine the turn-on instant for the primary-side transistor switch from the second turn-on instant or the first turn-on instant whichever is later, and responsively generate the primary-side transistor switch control signal.

Abstract: Isolated power supply control circuits, isolated power supply and control method thereof are disclosed, the control circuit for controlling an isolated power supply includes a secondary-side control signal generator and a primary-side control signal generator. The secondary-side control signal generator produces a secondary-side transistor switch control signal containing information about a turn-off instant of a secondary-side synchronous rectification transistor, which serves as a second turn-on instant. The primary-side control signal generator derives, from a feedback signal, a supposed turn-on instant for a primary-side transistor switch, which serves as a first turn-on instant. The primary side turn-on signal generator further derives a turn-on instant for the primary-side transistor switch from the second or first turn-on instant whichever is later and responsively generates a primary-side transistor switch control signal.

Abstract: A latch mechanism is provided and may include a first plate, a second plate, a cam rotatably supported between the first plate and the second plate, and a plurality of pawls rotatably supported between the first plate and the second plate. The plurality of pawls are movable from an unlocked state to a locked state by the cam. The plurality of pawls each include a plurality of discrete locking members extending toward and received by respective notches formed in one of the first plate and the second plate.

Abstract: A cash recycling system and a banknote separating device thereof are provided. The banknote separating device includes a supporting side plate, and an impeller wheel assembly, a banknote separating assembly, a first banknote pressing assembly and a second banknote pressing assembly mounted to the supporting side plate. The first banknote pressing assembly includes a first banknote pressing plate and a synchronous belt pulley mechanism configured to drive the first banknote pressing plate, and the synchronous belt pulley mechanism includes two synchronous pulleys and a synchronous belt sleeved on the synchronous pulleys. With the banknote separating device, the structure is simplified, the banknote clamping risk is reduced, and the reliability is improved.

Abstract: A cash recycling system and a banknote separating device thereof are provided. The banknote separating device includes a supporting side plate, and an impeller wheel assembly, a banknote separating assembly, a first banknote pressing assembly and a second banknote pressing assembly mounted to the supporting side plate. The first banknote pressing assembly includes a first banknote pressing plate and a synchronous belt pulley mechanism configured to drive the first banknote pressing plate, and the synchronous belt pulley mechanism includes two synchronous pulleys and a synchronous belt sleeved on the synchronous pulleys. With the banknote separating device, the structure is simplified, the banknote clamping risk is reduced, and the reliability is improved.

Abstract: A latch mechanism is provided and may include a first plate, a second plate, a cam rotatably supported between the first plate and the second plate, and a plurality of pawls rotatably supported between the first plate and the second plate. The plurality of pawls are movable from an unlocked state to a locked state by the cam. The plurality of pawls each include a plurality of discrete locking members extending toward and received by respective notches formed in one of the first plate and the second plate.