IEC 884 Plug Cord Voltage-Drop Tester / Testing Equipment
1.1 Product Characteristics
1.1.1 With advanced switching power supply control technology and
components, as well as careful design, the whole machine is small
in size, light in weight and high in efficiency, which ensures the
stability and reliability of long-term full load operation.
1.1.2 The maximum output of 1.1.2 is 15V, 100V, and the maximum
output power is 1500W.
1.1.3 The output voltage of this power supply (output voltage when
output current is constant) and constant current value (output
current when output voltage is constant) can be continuously
adjusted in the range of 0-100% of their maximum value. The output
constant current value can be adjusted to bring convenience to many
applications, such as many debugging applications. Reducing the
constant current value can easily and effectively protect the
safety of load equipment.
1.1.4 With perfect protection function. Built-in
temperature-controlled cooling fan can not only effectively
dissipate heat, but also effectively prolong fan life; automatic
shutdown protection for overheating; output overvoltage,
overcurrent and short circuit protection. Boot delay soft start to
avoid overshoot of output voltage.
1.1.5 Digital display output voltage and output current.
1.1.6 Easy to operate and easy to use.
1.2 Main Applications: Power supply is widely used in power DC
screen system, industrial control, communication, scientific
research, battery charging and other equipment.
1.3 Environmental conditions: storage temperature: (-40 ~ 70 ℃),
working temperature: (-20 ~ 50 ℃).
Relative humidity: 90% (40 ± 2 ℃), atmospheric pressure: (70 ~ 106)
2. Technical Parameters
Output voltage: 0 ~ 30V adjustable
Test current: 0 ~ 100A adjustable at any time (50Hz)
Test voltage: 0 ~ 200mV
Accuracy: ± 0.5%
Temperature: (15 ~ 35) ℃
Relative humidity: (45 ~ 75) %
Atmospheric pressure: (86 ~ 106) KPA
There is no strong electromagnetic interference and obvious
vibration and impact.
3. Brief Description of Working Principle
The input voltage of AC or DC passes through the "input notch"
circuit to the "rectifier filter" circuit, and the high voltage
(about 300V) DC voltage is obtained. "Power Conversion" converts
HVDC into a high-frequency AC with a binding force of 35 KHZ,
transforms it into the required output voltage through a
high-frequency transformer, and then obtains the voltage through a
high-frequency rectifier filter. The control circuit sampled the
voltage and output current, and generated the pulse width
modulation (PWM) signal after closed-loop feedback to control the
"power conversion" circuit, so as to keep the output voltage or