Current absorption circuit, DOB light source driving circuit and lamp

• Main Authors: LIU ZONGYUAN, XU YANGBIN, LIN QIQIANG, YE HEMU, LI YANKUN
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2023
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

The utility model belongs to the technical field of circuits, and provides a current absorption circuit, a DOB light source driving circuit and a lamp. The embodiment of the utility model provides a current absorption circuit, which is applied to a DOB light source driving circuit, the DOB light source driving circuit comprises a rectification module, the current absorption circuit comprises at least one voltage-sensitive device, the first end of the at least one voltage-sensitive device is connected with the negative electrode output end of the rectification module, and the second end of the at least one voltage-sensitive device is connected with a protection ground; wherein the pressure-sensitive device is used for absorbing a current signal which is caused by ringing waves and is greater than a preset current value. The main conception of the utility model lies in that at least one voltage-sensitive device is arranged at the negative electrode output end of the rectification module, and the second end of t