air conditioning compressor controller wiring diagram
#air conditioning
#compressor
#controller
#wiring
#automotive
#HVAC
#relay
#temperature control
#climate control
#vehicle electronics
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Comb electric circuit
The comb electric circuit illustrated in Figure 1-3 features two temperature settings. By toggling switch S to either the L or H position, different temperatures can be achieved. Once switch S is activated, the circuit powers the heating wires EH1...
1994 Golf GTI wiring
I have purchased and sold 10 MK3 Jettas and 1 MK3 Golf. This is my first time posting on a forum. I paid $400 for a 1994 GTI with the intention of fixing it and reselling it. The car was...
Car battery charger Automative car and motorcycle schematics
The circuit is designed to operate with an external power supply, which is why it does not include a transformer, rectifier, or filter capacitors in the schematic. However, these components can be added if desired. To utilize the circuit, connect...
R/C On/Off Motor Controller with Brake
A relay-based on/off controller on the other hand can be very efficient. A typical relay has a contact resistance of 3 milliOhm. At 20A, this translates to a voltage drop of 0.06 volts, with a power loss of 1.2W. The...
Control Circuits
This low current relay circuit is designed for use in battery-operated electronic devices. Its operating current is in microamperes (µA). This is achieved by using a bistable relay and incorporating additional components to enable the relay to function like a...
motorcycle headlight with single spdt relay
A bike equipped with a 35-watt HS1 bulb is being upgraded to a brighter headlight using an H4 60/65-watt xenon bulb. An expert recommended using relays due to the increased power requirements of the new bulb. Research conducted on relay...
Dark and Light Activated Relay
The potentiometer adjusts the trigger level. The diode in the circuit diagram is specified as 1N914, which is suitable for light-duty relays; however, since the 1N914 is a signal diode, it is not ideal. A 1N4001 or a better alternative...
Automotive Electrical Tester
This compact tester is designed for checking vehicle electrical circuits. Two LEDs indicate whether one of the clips is connected to the positive supply line (red) or to ground (green). The unit is powered by the vehicle battery. It is...
Isolated 24V Relay Controller
This is a common control voltage in industrial and telecommunications equipment, making relays frequently found in surplus equipment. Many relays can operate effectively on both AC and DC, providing a straightforward solution when the control voltage is switched mechanically, such...