Illumination driver circuit compatible with electronic ballast and mains supply, and illumination device

An illumination driver circuit compatible with an electronic ballast and a mains supply, comprising a leakage protection module and a constant current controller, wherein the constant current controller is configured to control an on-off state of a main power switching transistor;

• the leakage protection module is configured to detect a voltage signal of an input bus for leakage detection, and transmit an enable signal representing a leakage detection result to the constant current controller;
• the constant current controller is configured to detect an input signal of an input terminal to recognize the mains supply or the electronic ballast;
• and
• when the constant current controller detects that the input terminal is an input of the mains supply, the constant current controller controls the main power switching transistor to work in an off mode or an on/off mode according to the leakage detection result of the leakage protection module;
• and when the input terminal is an input of the electronic ballast, the constant current controller controls the main power switching transistor to work in a through mode.