Wuhan Questt Asia Technology Co., Ltd
Address:
A7-101, Hangyu building, Wuhan University Sci & Tech Park, East Lake High-tech Dev. Zone, Wuhan, Hubei, China
Email:[email protected]
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German Technology | Made in China
single-chip microprocessor, which can be used to adjust the output energy of power and the
repeated frequency. The system also features its multiple linked protections, ensuring the
emergency stop of the power under abnormal conditions.
(2) Electric circuit
The electric circuits are made up of the following parts:
Main return circuits: including the charging circuit, energy storage network, discharging
circuit and pre-burning and trigger circuit.
Controlling circuits: including the electric controlling circuit, microprocessor controlling circuit
and different kinds of protection circuits.
A.Step-up/rectification circuit: it employs the single-phase stepping up, which converts AC
220V into DV 500V that supplies power to the charging circuit.
B. Charging circuit
The charging circuit is composed of the IGBT switch tubes. Such a charging mode will
increase the repetition rate of the circuit.
C. Discharging circuit
The discharging circuit can be controlled by the silicon controlled switch that must be kept
shut off. After the energy storage network is charged, the silicon controlled switch is shut off,
then after the delayed time, the discharging can be realized by turning on the silicon
controlled switch. Once the energy storage capacitance is fully discharged, the silicon
controlled switch will be automatically shut off.
D. Pre-burning and trigger circuit
It is made up of the step-up and transforming circuit, high voltage bridge rectifier, filter,
current-limiting resistor; current relay, high voltage pulse transformer and high voltage trigger
circuit.
As the pulse xenon lamp is in the state of normal glow discharge when it is pre-burned, it has
the nature of negative resistance. To ensure the normal glow discharge of the xenon lamp
after the arc-discharge is finished, the pre-burning circuit must have the nature of high
current source and its current-limiting resistor must be relatively high. The internal triggering
mode is employed for this machine, with 50Hz automatic triggering. Once the pre-burning
switch is closed, the high voltage pulse transformer will generate high voltage of 15-20 kv to
be applied onto the resonance cavity. As long as the pre-burning is established, the trigger
circuit will be disconnected immediately.
E. Protection circuit
a) Pre-burning disconnection protection
When the pre-burning current is shut off, the discharging circuit will have failure, the
protection circuit will be activated to send out failure signal.
b) Flow interlocking protection
When the flow of the circulating water inside the cooling system is insufficient, the flow
