A charging pulse generator, exposure generating device therefor, and charging pulse output method
A charging pulse and generator technology, which is applied in the field of digital photography, can solve the problems that various charging parameters cannot be carefully adjusted, charging pulse generators cannot be realized, and charging pulse width, polarity, and duty cycle can be adjusted.
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Embodiment 1
[0035] as attached Figure 4 As shown, the rewritable storage unit 10 in the charging pulse generator includes a memory 13 and a memory 14, and the pulse control unit 20 includes a counter 21; wherein the memory 13 receives the charging pulse frequency value given by the CPU or other hosts, The memory 14 receives frequency division parameters given by the CPU or other hosts.
[0036] Frequency divider, frequency multiplier 30 receives reference clock signal and according to the frequency division parameter that memory 14 receives, obtains the reference clock of internal requirement; By the charging pulse frequency value that memory 13 receives, counter 21 can produce a certain reference clock number as The cycle value of the cycle step, in this way, this embodiment can generate charging pulses with a certain frequency as required.
Embodiment 2
[0038] as attached Figure 5 As shown, the rewritable storage unit 10 in the charging pulse generator includes a memory 11 and a memory 12, and the pulse control unit 20 includes a pulse reversal discriminator 22 and a reversal controller 23; wherein the memory 11 receives CPU or other The polarity value of the charging pulse given by the host, and the memory 12 receives the duty cycle value of the charging pulse given by the CPU or other hosts.
[0039] Frequency division and frequency multiplier 30 receive the reference clock signal and obtain the internally required reference clock according to fixed frequency division and multiplication parameters; The duty ratio of the charging pulse controls when the charging pulse needs to be inverted; then the inversion controller 23 obtains the charging pulse of the required polarity according to the polarity value of the charging pulse received by the memory 11, so that the present embodiment can generate a charging pulse as required...
Embodiment 3
[0041] as attached Figure 6 As shown, the rewritable storage unit 10 in the charging pulse generator includes a memory 11, a memory 12, a memory 13 and a memory 14, and the pulse control unit 20 includes a counter 21, a pulse reversal discriminator 22 and a reversal control device 23; wherein the memory 11 receives the charging pulse polarity value given by the CPU or other host, the memory 12 receives the charging pulse duty ratio value given by the CPU or other host, and the memory 13 receives the charging pulse frequency value given by the CPU or other host , the memory 14 receives the frequency division parameters given by the CPU or other hosts.
[0042] Frequency divider, frequency multiplier 30 receives reference clock signal and according to the frequency division parameter that memory 14 receives, obtains the reference clock of internal requirement; By the charging pulse frequency value that memory 13 receives, counter 21 can produce a certain reference clock number ...
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