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公开(公告)号：JPH075204A
公开(公告)日：1995-01-10
申请号：JP7039894
申请日：1994-04-08
申请人： RUKUROI SA
IPC分类号： G01R13/34
摘要： PURPOSE: To provide a sampling circuit based on charge for digital oscilloscope which uses a sampling switch using a signal input as a current instead of a diode sampling gate, and thus requiring no conversion from current to base on and after a separation buffer in common base stage. CONSTITUTION: This circuit is formed of a current sampling switch 1, a charge amplifier 2, and a charge/voltage converter. The current sampling switch 1 is connected to a separation buffer 9. The charge/voltage converter is formed of a charge integrator 6 comprising a transformer impedance amplifier 6 and a variable capacity diode 7, and a circuit 8 for resetting the charge.
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公开(公告)号：JPH0794955A
公开(公告)日：1995-04-07
申请号：JP7039594
申请日：1994-04-08
申请人： RUKUROI SA
摘要： PURPOSE: To provide a high-speed precision synthesis amplifier for making a synthesis gain independent of a frequency, especially the low frequency action of a high-speed amplifier. CONSTITUTION: This high-speed synthesis amplifier 1 is provided with a compensation network 7 for correcting the thermal distortion at a low frequency of the high-speed amplifier F2. The compensation network is provided with a precision amplifier P3, the addition node 6 of the precision amplifier P3 is connected to an input side X8 by an input transmission network and positively connected to an output side Y9 by an output transmission network O5 and the input addition node 10 of the high-speed amplifier F adds the output of the precision amplifier P and negative input signals X.
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