SU595678A1 - Single-channel sum-subtractive converter of power to dc voltage (current) - Google Patents

Description

one

The invention of pointers to radio engineering n can be used in devices of automation and imputable technology.

Single-cage sum-time converters of power to constant voltage (current) are known.

One of the known transducers converts the transmitted power to frequency 1.

The B1 of this converter is the need for additional frequency conversion to torque or current.

The closest technical solution to this invention is a single-channel sum-difference power converter to a constant voltage (current) containing an input current transformer, an input transformer and two anti-phase outputs, an automatic switch, an adder, a quadratic converter, an amplifier, a synchronous detector , a switching generator and a load resistor, the outputs of the voltage transformer through an automatic switch connected to the first input of the adder, second input of which is connected to the output of the current transformer, and the output of the adder via a quadratic converter and an amplifier connected to the input of the synchronous detector control input connected to the output of the generator and kommuta1PYuNNOGO control input of the automatic switch 2.

Odiaco this converter has nelibicoKoii and accuracy.

The purpose of the invention is to increase the accuracy of measurements.

For this, a single-channel sum-difference power converter to a constant voltage (current) containing an input current transformer, an input voltage transformer with two anti-phase outputs, an automatic switch, an adder, a quadratic converter, an amplifier, a 1-phase detector, a switching generator, and a load a resistor, the outputs of the voltage transformer through an automatic switch connected to the first input of the adder, the second input of which is connected to iibixo;, the current transformer oM, and the output The adder is connected via a quadratic converter) 1 splitgel is connected to the input of a synchronous detector, the control input of which is connected to the output of a switching generator and control unit, with an input of an automatic switch, a polarity selector is inserted, c (1 is from two diodes with opposite on double-sided am1; 1 tight limiter, linear generator iiapriCTatoHiero papr jepi and reversible

vrsm-g1mp ls11y | 1 prsoorg: 3 () wats; 1b, odile 1connectedly connected to the V1LKHOD of the synchronous detector, the other input - with the generator. Growing continuously, and the output switch with the inputs of the automatic switch.

The drawing shows a structural element; the tricek is a transformed circuit.

Odin o ka paral j n BI and sum m o r and z n o s t; i s and l re o b ri the driver of the monopusti nosto npos voltage (current) contains an input current transformer 1, an input transformer 2 and an alternator with two antiphase outputs, an automatic switch 3, adder 4, quad, p "1 Tichipy converter 5, usti.tidit. 6, C1 The synchronous detector op 7, the commutator generator 8 and the load resistor 9.

The outputs of the transformer 2 voltage through the automatic circuit; You are connected to the first input of the adder 4, the second input of which is connected to the Tpaiie output (current bopmator 1, and the output of the adder 4 through quadratic converter 5 and the 1G-6 amplifier is connected to the input of the synchronous children's switch 7, the control input of which is connected to the output switching oscillator 8 and the dying input of the automatic switch 3.

A polarity circuit consisting of two diodes 10 and 11 with opposite switching on and a series is introduced into the converter, a two-way amplitude limiter 12, a linearly rising generator 13, and a counting-time pulse generator 14, one input of which is connected to the output of the synchronous detector 7, the other input - with the generator 13 linearly increasing voltage, and the output through two hundred zonny amplitude limiter 12, the load resistor 9 p the zero selector on the diodes 10, And - with the inputs of the automatic switch ate 3.

A single-channel mono-differential-to-constant-difference-to-constant-to-one converter 11pe (current) works in the following way.

With the help of input transformers 1 and 2, the current and voltage are appropriately converted to proportional voltages. The voltage transformer 2 has a grounded midpoint, which ensures that the output control panel is distributed to the bottom of the first and the second phase of the control panels. An automatic non-switch 3, controlled by the switching generator 8, but at a low frequency, these pairs are connected to the input of the dry.mmator 4. The output of the transformer 1 is continuously fed to the second input of the summator 4.

When entering the input of the adder 4 epifazpogo voltage form; coziness and phase and phase total voltage.

From the output of the eummator 4, these steps alternately act on a quadratic converter 5. Euly the coefficient MonisocTn

io (eummarp by paring oo. 1) aspooled), and gI) 1xp 1p () P1) az () tel 5, this is the variable frequency with the switching frequency. L.Plite and interpolation papr / Keni pewor 1, - 1O1 al) on the difference of squares e.marpsich} n) is important about iaiir zhepiy and chuvs; t; i1te, 11, transformed 5. This is an ian of the world; It is a mustache: i: pte, lem 6 n straighten mp ee ectropny detector 7.

From the output of the synchronous detector 7), it is stopped) at the entrance to the 5th-mH input. converter 14, which excites linearly increasing generator 13. Output durations, long, ironionic, for the input poet 1H () are the same 11I1o, are limited by the al1n: 1t the flow of O1nrnchpte; 1em 12 to the given level. From the output of the limiter 12 pulses, at a constant frequency through naipy304Hijiii 9, included in the reverse circuit, they send one of the inputs of the autoswitch 3 through diode I to open for the polar polarity of the pulses. The average value of a non-periodic period.) Was estimated for the pro- tect of it; it should be passed through a load rezstor 9, given firstly on an equivalent of 1 Ostp.

Thus, a uniform output cable of the device, connected in parallel with the heating resistor 9, can be controlled directly in units of electrically heated vionurocTH.

and

() dkapapa.1pp) 1Y su mm o-) az lean transform .1b mopieuetpu to constant ian ejepie (current), containing the input current transformer, input transceiver | summator, quadratic 1st 1y converter. heater, detector, commutator i ei: epaTop and on | ruzochpy) 1 rezpstor, and B151vodhody voltage transformer through the automatic switch. key and switch to the first input of the adder, the second input of which is connected to the output of the current transformer, and the output of the adder through the quadruple 1 The first converter is correct, the switch is connected to the synchronous input the detector, which directs the input of which is connected () to the commutator house (; ipg) of its generator and y1 | pa -1Ly10 and m the INPUT of the automatic circuit. 1Och 1, about j j and h with the fact that, with a little increase in the accuracy of measurement, in him is a separate selector, which consists of two diodes with false-inclination, 10.1, 10.1 The amplitude of the generator is limited, the generator is a continuously increasing voltage and reversing time — a pulse pulse), the one input of which is connected to the trigger of the synchronous detector, the other input is by the generator linearly 1 st. 1, it is nanrp and the output is through two-way amplitude limiter, load resist and polarity selector - with I rows of automatic switch. Sources of information taken in the use of in the examination 1. Author's certificate of the USSR, 1 -157932, cl. G 01R 19/26, 1974. 2. USSR author's certificate No. 189941, cl. G 01R 21/00, 1967.