Free Simple Circuit Diagram
The safety shutdown and fault isolation protocol are critical in many telecommunication, industrial, data processing system and industrial. To share data between communication processor or single-board computers, actuator and sensors, the fault detection system uses RS-485. This RS-485 uses two signal wires to detection of valid signal levels that require a differential window comparator and to transmit data. Here is […]
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This is a circuit of FETVM-FET Volmeter. The function of the VTVM is replaced by the FTEVM while at the same time ridding the usual line cord instrument. This circuit can allow a 0.5 volt scale range because drift rate of FETVM are superior to vacuum tube circuits. Here is the circuit: The 2N4340 are implemented on this circuit because […]
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This is a low-current temperature sensors with a single-wire output. The number of pins that needed to interface with a microprocessor is minimized by this circuit because it uses a single-wire output. This circuit can be used in many appplication such as critical µP and µC monitoring, cell phones, networking and telecom equipment, hard drives/tape drives, portable battery-powered equipment, medical […]
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This is a simple circuit that shows the interface of a temperature transducer through a RS-232 interface cable. It can be used to measure a remote temperature far from the host system. While drawing little supply current from the power source, the temperature is converted into a square wave with a frequency proportional to the absolute temperature of its package […]
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