FIELD: electrical engineering. SUBSTANCE: device has sync pulse shaper 1 at frequency 2fc, where fc is supply voltage frequency, parallel-serial shift register 2 whose n-bit output is connected to control input of semiconductor power switch via trigger pulse shaper and to its own serial-entry input; register capacity determines power control step and number of positions in control code. Parallel-entry input, parallel-entry enable and data-entry enable inputs are connected to respective outputs of processor unit. Equipment under control is connected in series with power switch. EFFECT: reduced switching rate of thyristor and equipment under control, its independence of power utilization percentage. 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DIGITAL DIRECT-CURRENT DRIVE INCORPORATING DOUBLE PULSE-WIDTH MODULATION PROVISION | 1992 |
|
RU2037263C1 |
| VOLTAGE REGULATOR | 1997 |
|
RU2127480C1 |
| GEAR MEASURING VIBROTRANSLATIONS | 1994 |
|
RU2087876C1 |
| APPARATUS FOR CONTROLLING ARHYTHMIA | 1993 |
|
RU2077863C1 |
| METHOD OF CONTROL OVER SPECTRUM OF EXCITED RANDOM UNIDIMENSIONAL VIBRATION | 1997 |
|
RU2129259C1 |
| DEVICE MEASURING SPATIAL DISTRIBUTION OF TEMPERATURE | 1994 |
|
RU2079822C1 |
| ULTRASOUND ECHO-PULSE DEPTH METER | 1994 |
|
RU2082161C1 |
| SERVOSYSTEM | 0 |
|
SU1631513A1 |
| DEVICE DETERMINING ENERGY ACCUMULATION IN MATERIAL UNDER CYCLIC LOADING | 1994 |
|
RU2087895C1 |
| ION COUNTER | 1994 |
|
RU2066897C1 |
