Free electronic circuit design and schematic diagram
We can control medium power load, such as AC motors in home appliances, using ACST12 devices. Because of it’s thermal and turn off commutation performances, this device is able to drive an inductive load up to 12 A with no turn if additional snubber. High thermal performances in static and transient modes such as the compressor inrush current or high […]
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Below is a block diagram of a modern automated systems incorporate closed-loop feedback for motion control. They typically include a servo system that consist of feedback elements and motor driver combined in a manner. This will give accurate and stable control over speed and position. Below is the illustration of the various system-level components of a typical servo system. For […]
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As shown in a schematic diagram below, this circuit implementation of phase shifter circuit is well suited to using digital potentiometer to control the resistive control element of the phase shifter. The phase at a given frequency is now under control of a digital signal using this circuit which is optimized for phase-shifting over the audio range. By using a […]
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An output of 4 mA to 20 mA that is linearly proportional to the input voltage is provided by the current transmitter on figure below. Line rejection is 0.0005%/volt and linearity of the transmitter exceeds 0.004%. Here is the schematic diagram of this current loop circuit: The REF-02EZ provides biasing for the current transmitter. The output current is regulated by […]
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A full-wave rectifier circuit that provides the absolute value of input signals up to ±2.5 V even though operated from a single 5 V supply is shown in the schematic diagram below. The amplifier acts as a unity-gain inverter for negative inputs. The op amp output is forced by positive signal to ground. The 1N914 diode becomes reversed-biased and the […]
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The schematic diagram below show us a circuit of a battery-powered voltage reference that draws only 17uA of supply current. Two AA cells can power this reference over 18 months at this level. Drift of the reference is only at 5.5 uV/°C over the industrial temperature range at an output voltage of 1.23 V @25°C. The load regulation is 85 […]
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We can use tone/frequency detector (decoder) to detect the presence of a signal with a certain tone. The output of the circuit will be active if the signal is the same tone with the tone of a series of internal oscillator. LM567 is one of decoder that we can use. The LM567 and LM567C are general purpose tone decoders. Both […]
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