| 摘要 |
The pulse current supply according to the invention is capable to supply to the load current pulses with the length of 200 ns and of intensity approximately up to 1 A. The current supply consists of a pulse generator, whose output is connected to a control input of a switch (3) and with an input of a shaping circuit (2). The output of the shaping circuit (2) is connected with a gate of the first and the second switching transistor (7 and 6). A collector of the first switching transistor (7) is connected with one end of a standard resistor (4), which is simultaneously connected to the output of the switch (3). The second end of the standard resistor (4) is connected to the collector of the second switching transistor (6). An emitter of the first switching transistor (7) is connected across the first memory condenser (9) with earth on the one hand and with the first input of the first differential amplifier (11) on the other. The emitter of the second switching transistor (6) is earthed across the second condenser (8) on the one hand and is connected to the second input of the first deferential amplifier (11) on the other. The output of the first differential amplifier (11) is connected to the first input of the second differential amplifier (12) connected by means of the output across the power amplifier (13) to the second input of the switch (3). The current supply can be used for measuring pulse characteristics of electronic elements requiring current supply.<IMAGE>
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