60WLEDBULBGEVB: Dimmable, 9.5 W, 120 Vac CCR Lighting Circuit Evaluation Board
This circuit uses a parallel-to-series topology that dynamically adjusts LED load voltage as the instantaneous bridge output voltage varies. While a switch-mode power supply such as a buck converter reconfigures the input voltage to match the load, this circuit reconfigures the load to match the input voltage. When the instantaneous input voltage is relatively low, the LEDs are configured in parallel. When the instantaneously input voltage is relatively high, the LEDs are configured in series. The circuit is designed for input voltages between 100 VAC and 140 VAC . ON Semiconductor CCRs are used to provide constant LED current and to protect LEDs from over-voltage conditions. The circuit employs an additional CCR (shown as CCR2) to increase LED current at high voltages for improved efficiency, PF, and THD performance.
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description | Parts Used |
|---|---|---|---|---|
| 60WLEDBULBGEVB | Active | Pb-free | Dimmable, 9.5 W, 120 Vac CCR Lighting Circuit Evaluation Board | BAS21HT1G MMBT3904LT1G MMBT6517LT1G MMBTA56LT1G MMSZ5265BT1G NSIC2030JBT3G NSIC2050JBT3G NSS1C200LT1G NSS1C201LT1G |
Technical Documents
| Type | Document Title | Document ID/Size | Rev |
|---|---|---|---|
| Eval Board: BOM | 60WLEDBULBGEVB Bill of Materials ROHS Compliant | 60WLEDBULBGEVB_BOM_ROHS.pdf - 49 KB | 0 |
| Eval Board: Gerber | 60WLEDBULBGEVB Gerber Layout Files (Zip Format) | 60WLEDBULBGEVB_GERBERS.zip - 553 KB | 0 |
| Eval Board: Schematic | 60WLEDBULBGEVB Schematic | 60WLEDBULBGEVB_SCHEMATIC.pdf - 69 KB | 0 |
| Eval Board: Test Procedure | 60WLEDBULBGEVB Test Procedure | 60WLEDBULBGEVB_TEST_PROCEDURE.pdf - 43 KB | 0 |
| Video | 60W Equivalent LED Design Demonstration - 60WLEDBULBGEVB | WVD17603/D |
- 60WLEDBULBGEVB BOM ROHS 60WLEDBULBGEVB
- 60WLEDBULBGEVB GERBERS 60WLEDBULBGEVB
- 60WLEDBULBGEVB SCHEMATIC 60WLEDBULBGEVB
- 60WLEDBULBGEVB TEST PROCEDURE 60WLEDBULBGEVB
