Judges it is stirring up or instead stirs up, must look the
transformer presents to the C4 energy, is occurs clears when the
switching valve, when the switching valve shuts down ,On when just electricity, and heavy load, so long as on the C4 voltage
is smaller than time Vip-p*N2/N1, C4 clears when the switching valve
accepts the charge through D2, belongs is stirring up, when the
switching valve shuts down, accepts the charge through D3, by now but
used was the primary excitation energ
When 轻载, when on the C4 voltage is bigger than Vip-p*N2/N1, C4
only can closes when the switching valve accept the charge, belongs
instead stirs up.
Load current when intermediate quantity, is stirring up with instead
stirs up also exists.
Above three kind of situations, with the transformer primary
inductance quantity, leak the feeling size, the air gap size have the
very big relations.
So long as dead load suitable, occupies empties compared to can
elevate along with the output voltage drops, finally maintains in the
certain scope, occupies the spatial 比及 dead load design to be
appropriate, is cannot exploding machine. |
