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STD STAR_DELTA_TIMER
STAR_DELTA_TIMER
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Update time：
2022-10-15 20:31:23
Creation time：
2018-04-06 20:44:08
Description
Description
Delay Timer for soft start a motor by changing connection from star to delta.
First 3 sec both relay are off.
Next time according the position of R12 (from 1 sec( 0V) to 16 sec (VCC) ) the Relay1 is giving power for star contactor.
After this time the Relay1 will turn off and device is doing delay for 100ms.
Next the Relay2 will be turned on while the power is coming.
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Design Drawing
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 220nFx630V | C1 | CAP-SC_18X5-P15 | 1 |
| 2 | 100nF | C2,C6 | 0603 | 2 |
| 3 | 470uF | C3 | CAP-8*12 | 1 |
| 4 | 620 | C4 | 0805 | 1 |
| 5 | 100uF | C5 | CAP-8*12 | 1 |
| 6 | 100nF | C7 | 0805 | 1 |
| 7 | MB6S | D1 | MBS-4.9X4.0 | 1 |
| 8 | 1N4749A | D2 | DO-41 | 1 |
| 9 | SS16 | D3 | SMA(DO-214AC) | 1 |
| 10 | LL4148 | D4,D5 | LL-34 | 2 |
| 11 | 100uH | L1 | AXIAL-0.6 | 1 |
| 12 | 3AG2HD01 | LED1,LED2 | LED-3MM | 2 |
| 13 | WJ127-5.0-2P | P1 | WJ127-5.0-2P | 1 |
| 14 | WJ127-5.0-3P | P2 | WJ127-5.0-3P | 1 |
| 15 | MMBT2222ALT1G | Q1,Q2 | SOT-23(SOT-23-3) | 2 |
| 16 | 220k | R1,R2 | 0805 | 2 |
| 17 | 1KΩ(102) | R3 | AXIAL-0.6 | 1 |
| 18 | 3R3 | R4 | 0805 | 1 |
| 19 | 3k | R5 | 0805 | 1 |
| 20 | 1k | R6,R8,R9 | 0805 | 3 |
| 21 | 10k | R7 | 0805 | 1 |
| 22 | 2k2 | R10,R11 | 0805 | 2 |
| 23 | 2k | R12 | RM065-V1 | 1 |
| 24 | SRD-24VDC-SL-C | RELAY1,RELAY2 | G6RN SPDT | 2 |
| 25 | MC34063A | U1 | DIP-8 | 1 |
| 26 | ATTINY13A-SSU | U2 | SOIC-8_150MIL | 1 |
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