1.2 Schematic
Figure 1–2. Schematic Diagram
| J1 | 1 | 5.5 V to 12 V |
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| V I |
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| 2 |
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| V I |
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| + |
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| 3 |
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GND |
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| C10 | C5 | C11 |
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| R5 |
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4 |
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| 100 ∝ | F | 100 ∝ | F | 0.47∝ | F |
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GND |
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| 10 kΩ |
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| Q1 |
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| IRF7406 |
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| PMOS |
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| C14 |
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| 0.1 ∝ | F |
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| L1 |
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| 27 ∝ | H |
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| C15 | R6 | R10 |
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| C12 |
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| C7 |
| C13 |
| 1 | J2 | ||||
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| 15 Ω | 1 kΩ |
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| 1.0 ∝ | F |
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| U2 |
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| + | + | F | F | 3.3 V | ||||||||
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| 100∝ | F | 100∝ | 10∝ | 2 | ||||||||||
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| TPS2812 |
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| 3 | 3.3 V | |
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| 1 |
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| RTN | |
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| CR3 |
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| R7 |
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| 4 | |||
| C9 | 0.22 ∝ | F |
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| RTN | ||||
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| V DD | V CC |
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| 2 |
| BAS16ZX |
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| 3.3 Ω |
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| 8 |
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| CR1 |
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| R8 |
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| V CC |
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| REG |
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| 121 kΩ |
| 6 | R12 10 kΩ |
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| 30BQ015 |
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| DTC U1 |
| 2 |
| 1OUT 7 |
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| 1IN |
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| Q2 | C6 |
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| C2 |
| 3 | TL5001 | R11 30 kΩ |
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| IRF7201 |
| 1000 pF |
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| COMP |
| 4 |
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| 5 | NMOS |
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| 2IN |
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| 0.033 ∝ | F |
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| 2OUT |
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| R2 |
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| GND |
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C3 | 1.6 kΩ |
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| 4 | FB | OUT | 1 |
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| R13 |
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∝ F |
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| CR2 |
| 3 | 10 kΩ |
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0.0022 |
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| 7 |
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| 5 | BAS16ZX |
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| RT | SCP |
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| R9 |
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| + |
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| R4 |
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| GND |
| C1 |
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| 2.32 kΩ |
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| R9 |
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| 1.00 kΩ |
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| 1∝ F |
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| 90.9 kΩ | 8 |
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| C4 |
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| R3 |
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| 0.022∝ | F |
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| 180 Ω |
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Note: Frequency is set to 100 kHz by R9. See TL5001 data sheet for the curve of oscillator frequency versus timing resistance.
Hardware
Schematic