Driver, controlling method and illumination system

A control method for a load unit, comprising:

• providing, by a conversion circuit, an output current and an output voltage;
• selectively operating, by a control circuit, the load unit to be in a driving mode or in a standby mode according to a control signal;
• in the driving mode, controlling the output current to flow through the load unit, so as to drive the load unit;
• and
• in the standby mode, controlling the output current to flow through a bypass circuit connected in parallel with the load unit, wherein the output current in the standby mode is lower than the output current in the driving mode,
• the control circuit comprises a processing circuit and an adjustment circuit, the processing circuit is configured to generate a voltage adjustment signal and a current adjustment signal,
• the adjustment circuit is configured to receive a voltage on a first power line and the voltage adjustment signal so as to adjust the output voltage, and is configured to receive a voltage on a second power line and the current adjustment signal so as to adjust the output current.

An illumination system, comprising:

• a driver configured to drive the illumination unit, the driver comprising:
• a conversion circuit configured to convert an input voltage into an output voltage, wherein the illumination unit is coupled to the conversion circuit to receive the output voltage and an output current;
• a bypass circuit electrically coupled between the conversion circuit and the illumination unit;
• and
• a control circuit configured to control the output current to flow through the illumination unit to drive the illumination unit in a driving mode, and to control the output current to flow through the bypass circuit in a standby mode, wherein the output current in the standby mode is lower than the output current in the driving mode,
• the control circuit comprises a processing circuit and an adjustment circuit, the processing circuit is configured to generate a voltage adjustment signal and a current adjustment signal,
• the adjustment circuit is configured to receive a voltage on a first power line and the voltage adjustment signal so as to adjust the output voltage, and is configured to receive a voltage on a second power line and the current adjustment signal so as to adjust the output current.