The Voltage Regulator With a Field Effect Transistor

The Voltage Regulator With a Field Effect Transistor
Feature of this transistor compensation voltage (see picture) - used in the feedback field effect transistor VT3, which acts as a dynamic load for the transistor VT2. Because of this factor increases the voltage regulation: when the input voltage from 11 to 19 V output voltage varies within ± 60 mV. Rated output voltage using Zener type D814B is 9 V. (more…)

10V High-Stability Voltage Source Model

10V High-Stability Voltage Source Model
Fig .1 Highly stable source of voltage schematic Experimental studies of exemplary scheme of a highly stable source of voltage (Fig. 1) in the temperature range from -18 ° C to 50 ° C show that the temperature error of less than ± 0.001% / ° C, temporal drift no more than ± 0.005% per day. Source has a small thermal hysteresis (Fig. 2). (more…)

Rectifier circuit

Rectifier circuit
To generate a DC voltage such as primary cells (batteries) and a secondary cell (battery). They produce a DC voltage by converting chemical energy into electrical energy. The alternative is to generate a DC voltage of the AC voltage. This valve is made of the effect of the pn junction of a semiconductor diode. Note: The following circuit is a resistor in series to the diode. Resistance is needed to perform measurements with an oscilloscope. Without resistance there will