SU864505A1

SU864505A1 - Device for multiplying pulse ampliture

Info

Publication number: SU864505A1
Application number: SU792817700A
Authority: SU
Inventors: Валентин Парфирьевич Скворцов; Игорь Вячеславович Тиунов
Original assignee: Предприятие П/Я В-8150
Priority date: 1979-09-12
Filing date: 1979-09-12
Publication date: 1981-09-15

Description

II

Изобретение относитс к радиотехнике и может быть использовано в модул торах импульсных передающих устройств..The invention relates to radio engineering and can be used in modulators of pulsed transmitting devices.

Известны устройства дл умножени напр жени , состо щие из N последовательно соединенных каскадов, каждый из которых содержит конденсатор, предварительно зар женный от источника питани разр дный транзистор и резисторы, включеннь{е в базовые цепи второ- го и последующих каскадов, другим выводом соединенные с общей щиной. С помощью транзисторов конденсаторы всех каскадов во врем разр да соедин ютс последовательно {1.Voltage multiplying devices are known, consisting of N series-connected stages, each of which contains a capacitor, a discharge transistor and resistors, pre-charged from the power source, which are connected to the second and subsequent stages of the main circuits, another terminal connected to total length. With the help of transistors, the capacitors of all stages during the discharge are connected in series {1.

Однако в известных устройствах происходит больша потер энергии на резисторах, вклюценных в базовую цепь транзисторов, что снижает КПД устройства.However, in the known devices there is a large energy loss at the resistors incorporated into the base transistor circuit, which reduces the efficiency of the device.

Наиболее близким техническим решением к данному изобретению вл етс устройство дл умножени амплитуды импульсов, содержащее N каскадов, каждый из которых состоит из конденсатора, зашунтированного последовательной цепью из встречно включенных транзистора и диода, в оконечном каскаде защунтированного резистором, причем диоды всех каскадов включены в последовательную цепь, пер вый выход которой соедийен с общей щиной, а второй - с нагрузкой {2).The closest technical solution to this invention is a device for multiplying the amplitude of pulses, containing N stages, each of which consists of a capacitor, shunted by a series circuit of an oppositely connected transistor and a diode, in a terminal stage triggered by a resistor, and the diodes of all stages are connected to a series circuit , the first output of which is connected with the total length, and the second - with the load {2).

Недостатком этого устройства вл етс низкий коэффициент полезного действи за счет наличи потерь энергии в выравнивающих резисторах , шунтирующих диоды, причем дл ра;боты устройства необходимо наличие в каж10 каскаде схемы управлени транзисторным ключем, что .также снижает коэффициент полезного действи устройства.A disadvantage of this device is the low efficiency due to the presence of energy losses in the leveling resistors shunting the diodes, and for working the device, each control stage must have a transistor switch control circuit, which also reduces the usefulness of the device.

Цель изобретени - повыщение КПД устройства за счет уменьщени потерь в базовой це15 пи транзисторных ключей.The purpose of the invention is to increase the efficiency of the device by reducing losses in the base circuit of the transistor switches.

Поставленна цель достигаетс тем, что в устройстве дл умножени амплитуды импульсов , содержащем N каскадов, каждый из которых состоит из транзистора, конденсатора, The goal is achieved by the fact that in a device for multiplying the amplitude of pulses, containing N stages, each of which consists of a transistor, a capacitor,

Claims

The 20 diode and resistor, the first pin of which is connected to the emitter of the transistor and the cathode of the diode of this cascade, the anode of which is directly connected to the cathode of the diode of the downstream cascade and through a capacitor to the collector collector of its cascade, the base of which is connected to the input bus, and the second terminal of the resistor of the terminal resistor is connected to the anode of the diode of this stage and the output bus, in each stage of the device, except the terminal, the second terminal of the resistor is connected to the base of the transistor blowing cascade. The drawing shows an electrical diagram of the device for multiplying the amplitude of the pulses. The device contains an input bus 1, N cascades, each of which consists of a transistor 2, a codensor 3, a resistor 4 and a diode 5, and an output bus 6. In the initial circuit, the capacitors 3 of all stages are precharged from a low voltage source in some way, for example, via; postdvat; 1no connected charging keys. When a positive polarity tgr is applied to the input bus I of the first stage (the resistor 2 of the first cascade opens, and the capacitor 3 starts to discharge this through the resistor 4 and the transition b | through the open transistor (ph and the diode of the second cascade opens the third-stage transistor, etc.) At the same time, the capacitors 3 are opened through 4 transistors 2 so that diodes 5 are applied to the diodes 5 so that when the transistors 2 are open, the diodes S are closed. open tjpjufsmst All capacitors are connected in series and connected to the output bus, so that the output voltage is equal to the sum of the voltages on the capacitors.After the input pulse, the transistor 2 of the first stage closes, the current in the base-emitter network of the second stage closes and the second stage transistor closes and etc. Diodes 5 serve to charge capacitors, besides they perform a protective function, protecting against transistors overloading the transistors in the event of non-operation, with non-simultaneous switching on or off of one or several nzistornyh keys. The resistors 4, together with the resistor shunting the diode of the terminal stage, in addition to the above, play the role of equalizing the voltage on the diodes 5, when working on a load having a capacitive component. Comparative tests of the proposed and known device show that the efficiency of the invention is increased by 10-15%. The invention The device for multiplying the amplitude of pulses, containing N stages, each of which consists of a transistor, a capacitor, a diode and a resistor, the first output of which is connected to the emitter of the transistor and the cathode of the given cascade, the iodine of which is directly connected to the cathode of the subsequent diode and through the condenser - with the collector of the transistor of its cascade, the emitter, which is grounded in the first cascade, and the base is connected to the input bus, and the second terminal of the resistor of the terminal stage is connected to the anode d ode this stage and the output line of the tlichayuschees that, in order to increase efficiency in each stage of the device other than the eye echiogo, the second terminal of the resistor connected to the base of the transistor of the succeeding stage. Sources of information taken into account in the examination 1. Authors of the USSR N "627575 ,, cl. H 03 K S / OI, 1978.

2. Author's certificate of the USSR according to the application N 27 2700518 / 18-21, CL. N 03 K 3/53, 1978.