Konstantstromtreiberschaltung, Konstantstromsteuerungssystem und Lampe

Details

Veröffentlichungs-Nr.

EP4738999

Anmeldetag

20. Juni 2024

Veröffentlichung

2. Januar 2025

Rechtsraum

EP

Abstract

The present application provides a constant current drive circuit, a constant current control system, and a lamp. The constant current drive circuit includes a load module, a start-stop module for controlling the start and stop of the load module, an energy storage module, and a rectifier module for controlling the current angle and current magnitude of the load module circuit. The energy storage module can charge when the load module is input with a high voltage and discharge when the load module is input with a low voltage. The rectifier module includes a resistor R1, a first compensation circuit, a first reference circuit, a first comparator, and a field-effect transistor M1 connected in sequence, the drain electrode and the source electrode of the field-effect transistor M1 are respectively connected to the energy storage module and the resistor R3. The output terminal of the resistor R3 is connected to the output terminal of the load module and grounded, and the current peak value of the energy storage module is controlled through the resistor R3. In the present application, by adjusting the resistance value of the resistor R1, the on or off time of the field-effect transistor M1 is changed to adjust the phase angle of the electrolytic capacitor E1; by adjusting the resistance value of the resistor R3, the current peak value of the electrolytic capacitor E1 is further adjusted.

Anmelder

Firmen

Suzhou Opple Lighting Co., Ltd.
Opple Lighting Co., Ltd.

Land

🇨🇳 China