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Voltage DoublerThis is a Simple Voltage Doubler to boost 3V battery voltage to power some low-power 5V circuits. In...Dual Instrument Power SupplyEvery electronic gadget primarily needs a D.C, power supply to energize it. It also forms the basic ...Battery Backup for SRAM or MicrocontrollerThis circuit can be used as a low cost SRAM and Microcontroller-Microprocessor Battery Backup. All ...Voltage Level IndicatorThis circuit is derived from a Siemens Application Note 1974. ...Single Digit VoltmeterI wanted to design a logic probe as a tutorial, but there were many good ones in the web so i have t...Relay DriverThe above is a standard way of driving Small Power Relays from Control Signals generated by Logic or...Constant Current SourceThe transistor should handle 20V * 2 = 40V and a current of 20mA * 5 = 100mA. We have to overrate th...Temperature sensor based on AD590The voltage at the point 1 of R4 will be :Vo=( 1+ ( 10K/22K)) * Vref = 3.63V as nominal Vref is 2.5V... |
