MIL-PRF-28750F
b.
Apply zero bias voltage (if applicable) and zero control voltage.
Connect the output terminals of the SSR under test to the circuit of figure 4.
c.
d.
Close and open S1 for a minimum of 10 times. After 5 cycles, reverse the polarity to the SSR (ac SSR's
only). Verify that the SSR achieves the specified (see 3.1) output voltage within the specified (see 3.1) time
by measuring V(output).
4.7.7.22 Zero crossing (ac SSR's only) (see 3.13.28).
a.
Test setup in accordance with figure 1.
Apply specified (see 3.1) load, voltage and frequency.
b.
c.
Apply specified (see 3.1) input turn-on conditions.
Apply the input turn-on condition at 90(±10) and 270 (±10) of the load supply voltage and monitor the
d.
output voltage waveform, V(output) for the moment of turn on. The maximum value of "zero" voltage turn-
on shall be as specified (see 3.1).
Apply the input turn-off condition at 90(±10) and 270 (±10) of the load supply voltage and monitor the
e.
output current waveform, I(output), for the moment of turn off. The SSR shall not turn off with the removal
of input conditions until the ac load current is below the specified (see 3.1) value.
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