SU843132A1 - Secondary power supply source with sprecific shape of voltage-current characteristics - Google Patents

Description

(54) SECONDARY POWER SOURCE WITH SPECIAL FORM OF VOLTAMPER CHARACTERISTICS

and diagrams for comparing the output voltages of the source and functional converter connected with its output to the control input of the linear regulator, a multi-cell discrete voltage regulator was additionally introduced, the input and output outputs of which are connected respectively to the power supply voltage and load, and the control input through the charging unit - with the output of the functional converter, the linear controller being connected to the power supply circuit of one of the converter cells of the discrete controller but.

Fig. 1 shows a structural diagram of the proposed secondary power source, in Fig. 2, forms of a. for circuit elements.

A source of nutrition with a special form. consists of a discrete regulator 1, which includes a number of inverter cells 2, the output voltages of which are algebraically summed and rectified by rectifier 3, current sensor 4 connected between the output of controller 1 and load 5, and functional converter 6, whose input connected to the output of current sensor 4. The output of the functional converter b is connected via a delay element 7 to the control input of the regulator 1 and, in addition, to one of the inputs of the comparison circuit 8, the second input of which is connected to the source output.

The output of the comparison circuit 8 is connected to the control input of the linear regulator 9 connected to the power supply circuit of the inverter cell 2, designed for the minimum output power.

The scheme works as follows.

At the output of the functional converter 6, a voltage is formed, which, depending on the load current, 1 c repeats the volt-ampere characteristic of the solar cell or another primary source (Fig. 2, curve a). The direction U from the output of the Fgp function transducer enters through the delay element 7 on the control of the input of the discrete controller 1, which repeats the value and with accuracy (Fig. 2, curve b). However, the discrete controller is stable in the entire range of v.a.h. fundamentally impossible. Therefore, the voltage Ug is compared to the magnitude of the voltage across the load. The difference U UM after amplification is fed to the control input of the linear regulator 9, and the comparison and amplification functions of the difference signal are performed by the comparison circuit 8. The operation of the linear regulator 9 repeats the operation of a conventional linear compensating stabilizer, a reference voltage in which the voltage

 Thus, at the source output, the characteristic a is repeated (Fig. 2).

Element 7 Top Level Required

In order to eliminate the unstable | mode of operation of the discrete and linear regulators. In the source (Fig. 1), with small changes 1, only the regulator 9 operates, and the state of the discrete regulator remains unchanged. Only after the linear cascade 9 leaves the control limits does the discrete regulator 1 operate, after which the linear regulator 9 again operates. The time delay, determined by the inertia of the linear cascade transistor, ranges from fractions to units of microseconds. Such a delay is characteristic of conventional transistor switches, so in practice the delay element 7 may not be required.

Claims (4)

1. Patent SShL number 3435328, cl. 323-8, 1969. 2. The patent of Germany 2052252, cl. 21C 21/26, 1972. 3.Drabovich Yu.I. and others. Secondary power supply with special output characteristic. - Sat. Modern tasks converting technology. K., Academy of Sciences of the Ukrainian SSR, 1975, issue 6. 4.Gorbach A.V., Gul Kovich G.N. Integrated hybrid multichannel, niy VIP. - Sat. Electronic technology 1975, issue. b. and automatics i / "t / xx / IN / KZ 2