Delay energy saving lamp circuit and lamp
The invention is applicable to the field of electronic lighting and provides a delay energy saving lamp circuit and a lamp which are used for controlling and driving lighting of a lighting load. The delay energy saving lamp circuit comprises a transformer, a rectifier bridge, a switching tube, a trigger switch, an energy storage capacitor and the like, wherein the transformer includes a primary coil and a secondary coil which are mutually coupled, the transformer is electrically connected between an alternating current power supply and the lighting load, the rectifier bridge is connected in series between the power supply and the primary coil or between the secondary coil and the lighting load, and the switching tube is used for controlling work of the rectifier bridge. The invention further provides a lamp including the delay energy saving lamp circuit. Delay control is realized through combination of the switching tube and the energy storage capacitor. When the trigger switch is switched off, the energy storage capacitor discharges electricity, and the switching tube can continue to be switched on for a period of time; and when the voltage of the energy storage capacitor drops too much to maintain the switching tube in a switched on state, the power supply of the transformer is cut off, and the lighting load goes out. Therefore, the lamp can be automatically turned off after being in a turned on state for a period of time and has a delay energy saving effect.