Understanding How Async/await Write Infinite Loops for Async Processing

private async void job 1_CheckedChange(object sender, EventArgse)
{
    if (Work 1. Checked) // A: if checked
    {
        try // A: B, try this
        {
            wait Task.Run(async()=>Work1(); // A: Ask B to do one.Until then, I'll do other work. If there's any problem, please let me know.
        }
        catch(Exception ex) // A: I'll check if there's a problem
        {
            Job 1. Checked=false; // A: There's a problem, so I'll take it off.
            AddLog(ex+"\r\n", Color.Blue); // A: I'm going to write any problems I have in my logbook
        }
    }
}

Private async Task Work 1()
{
    while (Work 1. Checked) // B: If it's checked, all the time it's done
    {
        Write operations (pid, addr, ofst); // B: Write operations
        wait Task.Delay(150).ConfigureAwait(false); // B: 0.15 seconds Next task will be delayed.There is no problem with Mr. A even if he is late.
    }
    End of write operation (pid, addr, ofst); // B: End of write operation since unchecked
}

vartokenSource=new CancellationTokenSource(); // A: I'll make a condition for you to quit work 1.
vartoken=tokenSource.Token; // A: Here's the condition.

private async void job1_CheckedChange(object sender, EventArgse)
{
    if (Work 1. Checked) // A: if checked
    {
        try // A: B, try this
        {
            wait Task.Run(async()=>Work1(token),token);//Mr.A: Have Mr.B do work1.Until then, I'll do other work. If there's any problem, please let me know.
        }
        catch(Exception ex) // A: I'll check if there's a problem
        {
            Job 1. Checked=false; // A: There's a problem, so I'll take it off.
            AddLog(ex+"\r\n", Color.Blue); // A: I'm going to write any problems I have in my logbook
        }
    }
    Mr. Else//A: If the check is not checked,
    {
        tokenSource.Cancel(); // A: I'll ask you to stop working 1.
    }
}

Private async Task Job 1 (CancellationToken Token)
{
    while(true) // B: While Mr. A didn't order me to stop working,
    {
        Write operations (pid, addr, ofst); // B: Write operations
        wait Task.Delay(150).ConfigureAwait(false); // B: 0.15 seconds Next task will be delayed.There is no problem with Mr. A even if he is late.
        If(token.IsCancellationRequested) // B: If A orders me to stop working,
        {
            End of write operation (pid, addr, ofst); // B: End of write operation since unchecked
            break; // B: Stop writing. I'm not going to write.
        }
    }
}