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The 32-kHz low-power clock oscillator provides several advantages compared to traditional oscillator circuits that utilize a CMOS inverter. These inverter circuits often exhibit issues such as significant fluctuations in supply currents across a 3V to 6V supply range, making...
This decoder will respond to a preselected 4-digit DTMF number. IC7 is a Radio Shack IC device (part #276-1303). The logic is all CMOS. The digits are selected by SW1 and SW2, a pair of 8-position DIP switches. The described...
This is another example of a closed-loop speed control system. It utilizes a single voltage supply and an L298 integrated H-bridge power amplifier capable of handling 24V. Similar to the previous example, it is also suitable for two-way speed...
The output of this circuit is a current that is proportional to temperature, which can be utilized to drive a meter for direct readout. Alternatively, a resistor or operational amplifier can be employed to obtain a voltage output. The...
An adjustable laboratory power supply capable of providing an output voltage range from 0 to 60 volts can be constructed using the provided circuit diagram. This power supply can utilize the LM723 chip for lower voltage applications or, for...
This circuit measures the power supply current of a circuit without using a current shunt resistor: R1 is only 3 cm of #20 gauge copper wire. A length of the power distribution wiring can be used for R1. The...
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