RU112542U1 - COMBINED RECTIFIER WITH ADDITIONAL LINEAR POWER TAKE OFF - Google Patents

Abstract

A combined rectifier with an additional linear power take-off, containing a diode connected in series with the primary winding of a power matching transformer, the secondary winding of which is connected to the input of a bridge rectifier, the output of which is connected in parallel with the load and a capacitor, characterized in that it is equipped with four current transformers, the primary windings of which are connected in series with each other, by a diode and the primary winding of the power matching transformer, the secondary windings of the current transformers are connected to the groups of turns of the primary winding of the summing transformer, the secondary winding of which is connected parallel to the input of the second bridge rectifier, the output of which is connected in parallel with the second load and the capacitor.

Description

The utility model relates to the field of electrical engineering and can be used to convert variable voltage and current to constant.

Known combined rectifier containing diodes, matching power transformer, increasing the power transformer, capacitors and load (patent for the invention of the Russian Federation No. 2408130).

A known rectifier is closest to this utility model. The disadvantage of this rectifier is the inadequate selection of electrical active power.

The technical result of the utility model is the additional selection of electric active power during half-wave rectification.

The specified technical result is achieved by the fact that in a combined rectifier with an additional linear power take-off containing a diode connected in series to the primary winding of the power matching transformer, the secondary winding of which is connected to the input of the bridge rectifier, the output of which is connected in parallel with the load and the capacitor, according to the USEFUL MODEL, a combined rectifier with additional linear power take-off is equipped with four current transformers, the primary windings of which are connected They are connected in series with each other, with the diode and the primary winding of the power matching transformer, the secondary windings of the current transformers are connected to the groups of turns of the primary winding of the summing transformer, the secondary winding of which is connected parallel to the input of the second bridge rectifier, the output of which is connected in parallel with the second load and the capacitor.

Figure 1 presents a circuit diagram of a combined rectifier with an additional linear power take-off;

Figure 2 presents the timing diagrams of currents, voltages and EMF in various parts of the circuit controlled rectifier.

Combined rectifier with additional linear power take-off contains diode 1, bridge rectifiers 2 and 3, power matching transformer 4, current transformers 5-8, summing transformer 9, active loads 10, 11 and capacitors 12, 13, diode 1 is connected in series to an alternating current source , the primary windings of current transformers 5-8 and power matching transformer 4, the secondary winding of which is connected parallel to the input of the bridge rectifier 3, the output of which is connected in parallel with the load 10 and the capacitor 12, the second The primary windings of current transformers 5-6 are connected to the groups of turns of the primary winding of the summing transformer 9, the secondary winding of which is connected in parallel to the input of the bridge rectifier 2, the output of which is connected in parallel with the load 11 and the capacitor 13. A combined rectifier with additional linear power takeoff works as follows. Diode 1 produces a half-wave rectification of an alternating voltage. The ripple voltage through the primary windings of current transformers 5-8 is supplied to the primary winding of the power matching transformer 4. As a result, a ripple current will flow in this circuit. Due to the EMF of self-induction in the transformers, the second half-cycle will be restored. Next, the alternating voltage of the secondary winding of the power matching transformer 4 is rectified by a bridge rectifier 3, filtered by a capacitor 12 and supplied to load 10, the alternating voltages of the secondary windings of current transformers 5-8 are supplied to the groups of turns of the primary winding of the summing transformer 9, the alternating voltage of the secondary winding of which is rectified by a bridge rectifier 2, is filtered by a capacitor 13 and supplied to the load 11.

The timing diagrams depicted in figure 2 graphically explain the physical processes taking place in various parts of the circuit.

Claims (1)

Combined rectifier with additional linear power take-off, containing a diode connected in series to the primary winding of the power matching transformer, the secondary winding of which is connected to the input of the bridge rectifier, the output of which is connected in parallel with the load and the capacitor, characterized in that it is equipped with four current transformers, the primary windings of which connected in series with each other, a diode and the primary winding of the power matching transformer, the secondary windings of the transformer moat current connected to the groups of primary windings of the summing transformer, the secondary winding is connected in parallel to the input of the second bridge rectifier, whose output is connected parallel to the second capacitor and the load.