The APS-1102A is equipped with the following measurement functions
- Voltage (RMS, Average DC, Peak)
- Current (RMS, Average DC, Peak, Peak hold)
- Power (Effective, Reactive, Apparent)
- Synchronization frequency (external synchronization)
- Load power factor
- Load crest factor
- Harmonic current (50/60Hz fundamental, up to 40th harmonics)
Application Fields
- R&D and Testing of wide variety but small quantity ac power supply manufacturers
- R&D and Testing of wide variety and compact consumer device manufacturers
- Testing of battery-powered modules
- Used as the power source for relay and switch characteristic testing.
- Used as the power source for product inspection lines of devices in wide variety
- Used as the power source for LCD or battery formation
Unique Features
Inrush Current Measurement and Inrush Current Limiter
An electronic device containing a capacitor type rectifier, an inrush current, which is larger than the rated current of the device, may flow through the power line immediately after the device is turned on. APS-1102A, with peak current hold capability, is able to measure this short time inrush current. On the other hand, the large inrush current flows through the power line may cause the voltage drop, so the electronic device should be able to limit this effect to a certain extent. APS-1102A can supply four times as large peak current as the rated current to support this test.
The output current can be limited by setting the maximum output current (peak/average current) in advance, so the prototypes can be protected from abnormal current damage during development evaluation. However, to measure the inrush current of a completed product, the peak current limiter should be set at the maximum value to get a correct measurement result.
Harmonic Current Measurement Function
Switching power sources are widely used in both consumer and industrial electrical products in today’s market. With the capacitor type rectifier, the switching power source has its disadvantages using an input AC source carrying significant amount of harmonic current. When a large amount of harmonic current flows through the power source line, the switching power supply in the device may experience operation faults caused by the voltage distortion, leading to transformer overheat and possibly resulting in a hazardous accident. APS-1102A includes a harmonic current measuring function, which can be performed under AC-INT mode at the fundamental wave setting (panel frequency setting) of either 50 Hz or 60 Hz. Absolute values of harmonic current in RMS and the harmonic to fundamental ratios up to the 40th harmonics ( 2 kHz at 50 Hz fundamental) can be measured and displayed.
Application Examples
DC to DC converter verification:
In the general environment, the input source of DC to DC converter couldn't be a perfect DC. It may contain some AC ripples riding on a DC source due to the sample rectifier and filtering circuit used in the consumer products. AC+DC source is used as the simulation of input power to do the characteristic verification of DC to DC converter.
Transformer verification:
Ideally the voltage flows through transformer should be a pure AC; however, in the general environment, it may also contain a DC component, which may cause magnetic saturation of the transformer and therefore reduce its efficiency. AC+DC source is the simulation of such power environment.
Capacitor verification:
The main function of a capacitor is to block the DC voltage and connect the AC voltage in most of the circuits. The DC voltage imposed on the Capacitor, however, will generate extra heat and gradually degrade the function of the capacitor. AC+DC source could be used to test the durability and reliability of a capacitor.
LCD formation:
APS-1102A provides various types of power source that suits the application of the formation of LCD panel in the manufacturing process. The power source could be AC or AC+DC at various levels of output. Formation is an important process to format the liquid crystal cells inside the panel, so the polarity of the crystal cells could be well-arranged to become functional.
Remote Control Software
APS-1102A includes a multi-functional and user-friendly software, which supports the remote control of panel operations, Sequence editing and execution, Arbitrary waveform editing and transfer, and Data logging via USB interface:
- Data logging
- Sequence editing and execution
- Arbitrary waveform editing and transfer
- Remote control of panel operations