| 摘要 |
1,141,540. Tunnel diode monostable circuits. UNITED STATES ATOMIC ENERGY COMMISSION. 13 July, 1966 [6 Oct., 1965], No. 31464/66. Heading H3T. [Also in Divisions G1 and H1] A device 41 in a circuit for detecting and measuring the energy of ionizing radiation (see Division H1) is coupled to a monostable tunnel diode circuit 13, 55 which is fed from a negative supply 63. A pulse from the detector switches the tunnel diode to its high-voltage state and so switches off a transistor 19. Resistor 51 is of high value so that substantially all of the input pulse energy is used to switch the tunnel diode. A capacitor C3 supplies drive for an emitter follower output stage T2, and also filters transients due to high current pulses from the detector 41. High-voltage bias to the detector 41 is from a source 71, and low-pass filters 63, 65 are provided. A diode 91 acts as a Zener device for voltage filtering. After each pulse the tunnel diode 13 is inductively reset for further pulses.
|
