Diode frequency modulation miner
Publish: 2021-05-02 18:35:09
1. Brother, bitcoin has collapsed. These digital currencies are deceptive, and the rise and fall of them are controlled by people. Only fixed assets or gold are relatively safe. The so-called Taiping antique gold in troubled times. But also to polish your eyes, low into.
2. In5818 is a Schottky tube and silicon tube used for rectifying. It can't do this. To make ore machine, we need to use germanium tube with high sensitivity, such as 2ap9. There are generally recommended models on the drawing of ore machine.
3. The most "last" boss, Wuke Mondes, is as easy as hunting demons. Thanks to you, Mondes broke up the Spartan family and killed EVA, Dante's mother. You've been living in vain for so many years. Boss attack method is mainly left and right hand hit you, both hands hit you, spit and shoot yellow ball, weakness in two hands have an eye, can use Angel pull past, move simple can't be more simple. Play, see boss one hand up is one hand smash, hands up is two hands smash, shooting time will use mouth gun (good idiot ah, Hello!) Note here that when Dante has a black vortex under his feet, the boss will aim his fist at you. When the boss raises his one handed hand and Dante has no vortex under his feet, it means that the boss will hit his fist on one side of the platform, which will cause a shock wave (double fist smashing will also cause a shock wave). Pay attention to dodge and jump to another platform when spitting. When the boss both hands are useless, it will use the mouth gun to attack (.) It's different from before. It seems that you can't track Dante, so it's easy to hide. When he makes an idiot and points his mouth at you, the angel will pull it.
4. Using the unidirectional conctivity of varactor diodes, when the diodes turn off in the reverse direction,
the PN junction is used as the medium, and the two poles are used as the two pole pieces of the capacitor,
thus a capacitor is formed
when the thickness of the PN junction changes, the capacitance of the capacitor also changes
according to the oscillation frequency formula
F = 1 / (2 * pi * L * c)
when the capacitance C on the varactor diode changes, the oscillation frequency f changes accordingly, so as to achieve the purpose of frequency molation.
the PN junction is used as the medium, and the two poles are used as the two pole pieces of the capacitor,
thus a capacitor is formed
when the thickness of the PN junction changes, the capacitance of the capacitor also changes
according to the oscillation frequency formula
F = 1 / (2 * pi * L * c)
when the capacitance C on the varactor diode changes, the oscillation frequency f changes accordingly, so as to achieve the purpose of frequency molation.
5. Varactor diode is a kind of diode whose junction capacitance can be changed with different voltage. Variable capacitance diode frequency molation circuit is to use this characteristic to change the capacitance value, so as to change the resonant frequency, so it can jump frequency.
6. Under laboratory conditions, if you want to design such a frequency regulator, you usually need to use the diode's directional to store function to turn the pen and paper alternating current into direct current.
7. 1) The circuit and components at the left end of LC2 is a typical clapper capacitor three-point oscillation circuit
2) the oscillation frequency can be changed by changing the CJ value. To change the CJ value, it is necessary to apply different reverse bias voltage to the varactor diode
3) RW provides a reference reverse bias voltage, which determines the center frequency of the circuit and molates the signal v Ω It is superimposed on the reference voltage of RW to realize the molation of center frequency;
2) the oscillation frequency can be changed by changing the CJ value. To change the CJ value, it is necessary to apply different reverse bias voltage to the varactor diode
3) RW provides a reference reverse bias voltage, which determines the center frequency of the circuit and molates the signal v Ω It is superimposed on the reference voltage of RW to realize the molation of center frequency;
8. The condition of realizing linear frequency molation is the change index of junction capacitance of varactor diode γ 2
the principle of frequency molation is that the frequency offset of the frequency molation signal is proportional to the amplitude of the signal, and the oscillation frequency of the frequency molation circuit is proportional to the 1 / 2 power of the capacitor
by combining these two factors, we can know that only when the junction capacitance of varactor changes exponentially γ The frequency offset of FM signal is proportional to the amplitude of the signal.
the principle of frequency molation is that the frequency offset of the frequency molation signal is proportional to the amplitude of the signal, and the oscillation frequency of the frequency molation circuit is proportional to the 1 / 2 power of the capacitor
by combining these two factors, we can know that only when the junction capacitance of varactor changes exponentially γ The frequency offset of FM signal is proportional to the amplitude of the signal.
9. The unidirectional conctivity of varactor diode and its adjustable inter electrode capacitance are used to adjust the oscillation frequency
10. Ha ha ha, your question should be: why should the power supply line of laser diode use high-frequency shielded wire
because:
in most cases, laser applications work in the state of frequent "on and off". In particular, laser ranging, the "on, off" speed requirements are very high
this requires that the distributed capacitance between the power supply wires of the laser tube should be very small (it is impossible to completely eliminate it). If the distributed capacitance is large, when the switch is closed, e to the small charging resistance of the capacitor, the two ends of the laser tube are short circuited within a certain period of time when the switch is closed, and the laser tube can work normally only after the capacitor is fully charged. When the switch is off, the power stored in the capacitor will still light up the laser for a certain period of time. So distributed capacitance makes the switch ll
what kind of conctor has small distributed capacitance? The answer is: high frequency shielded cable. This kind of cable not only has good frequency response, but also has excellent anti-interference performance
(video transmission cable is a general cable with low cost and high electrical performance. If you don't dislike its poor size and mechanical strength, you can use it directly.)
because:
in most cases, laser applications work in the state of frequent "on and off". In particular, laser ranging, the "on, off" speed requirements are very high
this requires that the distributed capacitance between the power supply wires of the laser tube should be very small (it is impossible to completely eliminate it). If the distributed capacitance is large, when the switch is closed, e to the small charging resistance of the capacitor, the two ends of the laser tube are short circuited within a certain period of time when the switch is closed, and the laser tube can work normally only after the capacitor is fully charged. When the switch is off, the power stored in the capacitor will still light up the laser for a certain period of time. So distributed capacitance makes the switch ll
what kind of conctor has small distributed capacitance? The answer is: high frequency shielded cable. This kind of cable not only has good frequency response, but also has excellent anti-interference performance
(video transmission cable is a general cable with low cost and high electrical performance. If you don't dislike its poor size and mechanical strength, you can use it directly.)
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