Efficient 12v dc relays for High-Risk Applications
Reliable 12v dc relays Designs for Industrial and Industrial Applications
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EZOPower 75W Car Power Inverter 12V to 110V with USB Charging Port 1A.Technical Information:
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If i have a 3 led lamp kit (red, yellow, green) how would i wire them with two timing relays to create a flashing effect? This is for a school project and i'm kind of stuck with this. Any help is appreciated, thanks!
And got the following answer:
Assuming you have 12V relays, and power from a 12V x 300 mA or more DC plug pack, and these are small relays with one Amp contacts or less. (Not car headlight relays etc). Have two relays, R1 and R2, each with at least one changeover contact. Changeover contacts have the following connections: Common (C) Normally Closed (NC) Normally Open (NO) Draw out the circuit described here... From Vs+ to R1 (C) and R2 (C). From R2 (NC) to coil + of R1. From coil - of R1 to Vs-. From R1 (NO) to R2 coil +. From R2 coil - to Vs-. LEDs need a series resistor about 1000 ohms (assuming 12V for Vs supply). Connect them between the spare contacts and V-. That allows for two of them. Others could connect across the coils. The first relay operates the second relay which releases the first which releases the second which connects the first again - forever. This will happen fairly fast unless the relays have a built in time delay. You can slow it down with capacitors, assuming these are normal DC relays, maybe 1000 micro Farads connected across each coil. Plus to plus, minus to minus. The coils are not likely to be marked + and -, just a and b perhaps.
The 12v dc relays perform extremely nicely with unique applications that are distinct to power distribution and protection. The relays come with wide adjustment ranges using a scale that is certainly simple to read either in three or four digits in accordance with the model. These 12v dc relays help in increasing the flexibility from the applications, reduce the general energy and maintenance costs. You’ll find relays which are employed for common purposes which are available in dependable styles with swift replacement selections. And you will find models which can be used for industrial applications and heavier duty applications that perform on huge loads. These items are created to meet the lifetime industrial handle requires in the applications.
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