SU1032561A1 - Versions of static ferromagnetic multiplier of frequency by even times - Google Patents

Abstract

1. Static ferromagnetic frequency multiplier in an even number of times, containing a magnetic core with: t-phase primary and secondary windings and a direct current biasing winding connected in parallel with the output of the m-phase output bridge, characterized in that in order to reduce the power consumption of idling and to expand the range of the nominal efficiency, the secondary winding is made in the form of two successively connected semi-windings intertwined with the primary winding, one of which is) inena free ends to the input m-straightening phase E (with L:. Tel'nykh bridge, and the other - to the terminals for connection with a load to eat O5 F1 / g /

Description

2. Static ferromagnetic frequency multiplier in an even number of times, containing a magnetic core with m-phase primary and secondary windings and a direct-current biasing winding connected in parallel with the output of the m-phase rectifier / {itelny bridge, on it and with THAT ; in order to reduce the power consumption of the idling and extend the range of the nominal efficiency, the secondary winding is magnetically connected to the primary winding, some KOJ-shami are connected to the input of the rectifier bridge, and others are connected to the terminals and loads.

one

The invention relates to ferromagnetic frequency multipliers and can be used, for example, to start and maintain the operating mode of high frequency asynchronous motors.

The doublers and frequency quadruplers are known, which contain; a closed magnetic circuit together with primary and secondary mutually inducting windings and a direct current of iC2 and Cz located on it. The disadvantage of these devices is with low efficiency.

The closest to the present invention is a static ferromagnetic frequency multiplier even number of times, containing a magnetic core with m - (1) primary and secondary windings and a magnetizing current with DC current connected in parallel with the output of the m-phase rectifying bridge C4 3

The disadvantage of the known standby driver is the oversized idle power consumption due to the hard coupling of the bias current to the primary current, as well as significantly reduced efficiency values in the operating power range compared to the nominal power. In such a multiplier, the idle power consumption can be reduced only when using an additional regulated source of direct current, which complicates the system as a whole.

The purpose of the invention is to reduce the power consumption of the idling and to extend the range of the nominal efficiency.

This goal is achieved by the fact that in a static ferromagnetic frequency converter at an even number of times, there is a magnetic core with 1t -phase primary and secondary

the windings and the winding of the magnetization direct current, connected in parallel to the output of the t-phase expressive bridge, the secondary winding is made in the form of two sequentially

connected semi-windings, mutually inductive with the primary one, one of which is connected to the input ends of the m-phase expansion bridge, and the other to the terminals for connecting the load,

In a static ferromagnetic frequency multiplier, in an even number of times, there is a magnetic core with m-phase primary and secondary windings and a direct current biasing winding connected in parallel with the output of the t-phase rectifier bridge, the secondary winding is magnetically connected with the primary winding, one magnetically connected, one secondary winding, one magnetically connected, one secondary winding, one magnetically coupled one with the primary winding, one magnetically connected one. , is connected to the input of the indicated bridging bridge, and others - to terminals for connecting the load

Fig. 1 shows the scheme of the static ferromagnetic frequency multiplier even number of times; Fig, option 2 frequency multiplier.

The static ferromagnetic frequency multiplier even number of times contains the primary winding 1, the secondary winding 2 with the half windings 3 and 4, the bias winding 5, the alternating bridge 6 and the load 7 (FIG. 1)

 The device works as follows

When connecting the multiplier to the t-phase AC network in the half-winding 4 (FIG. 1), the emf is induced

the main frequency, the value of which is determined by the ratio of the numbers of turns of the primary winding and the secondary half-round and is 1.5-2 V, the Current in

Claims (2)

1. A static ferromagnetic frequency multiplier an even number of times, containing a magnetic circuit with rn-phase primary and secondary windings located thereon and a DC bias winding connected in parallel with the output of the m-phase rectifier bridge, characterized in that, in order to reduce the idle power consumption the course and expansion of the range of nominal efficiency, the secondary winding is made in the form of two half-windings connected in series, mutually inductive with the primary, one of which is connected to rim i ends to the input of the m-phase rectifier bridge, and the other to the terminals for connecting the load. FIG. ? SU „„ 1032561 2. A static ferromagnetic frequency multiplier an even number of times, containing a magnetic circuit with m-phase primary and secondary windings located on it and a DC bias winding connected in parallel with the output of the m-phase rectifier bridge, characterized in that, in order to reduce power consumption idling and expanding the range of nominal efficiency, the secondary winding magnetically connected to the primary winding is connected at one end to the input of the rectifier bridge, and at the other end to the terminals for connecting load.