EveryCircuit
Powering up...
Circuit
Public
Private
Unlisted
Save

RAM Discharge with Periodic Tick Generator aka 'The Tick'

@alexdfox
18 hours ago
https://everycircuit.com/circuit/5567566126907392
@Muse - The circuit integrates a periodic clock source labeled #Tick and a discharge driver to systematically clear and drain the storage state of the memory circuit. ### Circuit Operation - **Tick Generator (#Tick)**: Configured as a 500 Hz pulse source ($2\text{ ms}$ period, $20\%$ duty cycle, $0\text{ to }5\text{ V}$) that supplies periodic clock pulses to control the discharge cycle. - **Discharge Stage (#Q1, #R1)**: The base of NPN transistor #Q1 is driven through current-limiting base resistor #R1 ($1\text{ k}\Omega$). When #Tick pulses high ($5\text{ V}$), #Q1 saturates, pulling the active storage/sense rail (#19) directly to ground (#21). - **Draining the Cell**: Draining rail #19 discharges the stored magnetic and junction energy across the coupled transformer and transistor loop, clamping node voltages and clearing any retained state. - **Waveform Monitoring**: The oscilloscope displays the clock gating signal #gate alongside storage rails #19 and #18 to observe state retention during the idle phase and full discharge during each clock tick.
Comments
Post