Introducing the GW Instek PPH-1506D/1510D programmable high precision dual-channel DC power supply.
GW Instek introduces PPH-1506D/1510D programmable high precision dual-channel DC power supply. Both CH1s of PPH-1506D and PPH-1510D have the same total power output of 45W and provide dual operational ranges from 0 to 15V/ 0 to 3A or 0 to 9V/ 0 to 5A. Both CH2s provide 0 to 12V/ 0 to 3A with the power output of 36W. It's worth noticing that PPH- 1510D provides 10A current output capacity in rear terminals if the CH1 output voltage operates from 0V to 4.5V.
The high precision measurement capability of both PPH-1506D and PPH-1510D achieves the maximum resolution of 1mV/0.1μA and the smallest pulse current width of 33μs that satisfy customers’ measurement application requirements of high resolution and pulse current.
Fast load current variation will result in voltage sag for general power supplies that will have an impact on DUT’s internal circuit operation.
PPH-1506D and PPH-1510D are equipped with the excellent transient recovery time, which can, in less than 40μs, recover the output voltage to within 100mV of the previous voltage output when the current level changes from 10% to 100% of the full scale. Furthermore, conventional power supplies do not have sufficient response speed to promptly respond to set voltage value once the set voltage is changed.
PPH-1506D and PPH-1510D have a rise time of 0.2ms and a fall time of 0.3ms, which are 100 times faster than that of conventional power supplies. Therefore, PPH-1506D and PPH-1510D can provide DUT with a stable output voltage even when DUT is operating under large transient current output. The internal high-speed sampling circuit design of PPH-1506D and PPH-1510D, with the sample rate of 64K, can conduct pulse current measurement without using a current probe and oscilloscope.
The current read back accuracy is 0.2%+1μA (equals to 11μA) at 5mA range, and the read back resolution is 0.1μA that allow DUT to be measured with a high accuracy level. Unlike batteries, general power supplies, which do not have the characteristics of fast transient recovery time, can not maintain a stable power supply for cellular phone, wireless device, and wearable device which produce large transient pulse current load for hundreds of μs to dozens of ms when in use.
PPH-1506D and PPH- 1510D, different from general power supplies, have the characteristics of fast transient recovery time. While simulating battery to output pulse current, PPH-1506D and PPH-1510D can quickly compensate the voltage drop caused by pulse current. Both of the CH1 have the built-in battery simulation function, which can define output impedance settings so as to accurately simulate battery’s impedance characteristics during battery discharge. Fast transient recovery time and built-in battery simulation function together facilitate PPH-1506D and PPH-1510D to accurately simulate battery’s real behavior pattern so as to conduct product tests.
PPH-1506D and PPH-1510D are not only suitable for simulating battery, charger and supplying power to DUT, but also ideal for simulating an electronic load to conduct discharge tests with their sink current capability. The sink current function allows PPH-1506D and PPH-1510D to simulate a voltage source with the sink current capability.
For PPH-1506D and PPH-1510D, the maximum sink current for both CH1s is 3.5A, whilst it’s 3A for both CH2s. Long integration current measurement can be utilized to conduct average current measurement for periodical pulse current in a long period of time that is applied to analyze power consumption for a period of time.
One of the applications is to measure the average power consumption of a cellular phone in use so as to conduct the internal RF module parameter analysis. The maximum pulse current measurement range of CH1 is 5A and for CH2 is 3A. The built-in sequence function of CH1 provides users with 1000 steps to edit sequential outputs, including voltage, current and execution time.
The built-in DVM function of CH2 has a voltage range from 0 to +20VDC that saves users the cost of purchasing an additional voltage meter. PPH-1506D and PPH-1510D provide OTP function and show heat sink temperature on the upper right corner of the display screen.
Other than that, features such as five sets of system setting values for the SAVE/RECALL function, 10 sets of Power On Setup Settings, Key-Lock function to prevent unauthorized inputs, temperature-controlled fan to reduce noise, hardcopy to save screen information, and external relay control device together augment usability of both PPH-1506D and PPH-1510D. PPH-1506D and PPH-1510D support test requirements of Profile1, Profile2 and Profile3 from USB Power Delivery(PD) constructed by USB-IF association.
• 3.5”TFT LCD Display
• High Measurement Resolution: 1mV / 0.1μA for 5mA range.
• Transient Recovery Time: ≦40μS within 100mV; <80μs within 20mV
• Current Sink Function
• Pulse Current Measurement(Pulse width min.: 33μs)
• Long Integration Current Measurement
• Built-in DVM Measurement Function
• Sequence Function(Sequence Power Output)
• Built-in Battery Simulation Function(CH1)
• OVP, OCP, OTP & Temperature Display for Heat Sink
• Support USB(Device & Host)/ GPIB/ LAN
• Five Groups of Save/ Recall Setting
• External Relay Control
Sink Current Function
When connecting with an electric potential circuit and the output voltage of the tested electric potential circuit is greater than that of PPH-1506D or PPH-1510D by approximately 0.3V to 2.5V, PPH-1506D or PPH-1510D will automatically convert its power supply role to the sink current role actingas a load ofvoltage source. At this time, the voltage setting of PPH-1506D or PPH-1510D can be regarded as the CV setting of an electronic load. A single PPH-1506D or PPH-1510D can be used to chargebattery and to simulate battery’s load to consume power without extra instruments. They are ideal for tests on battery and portable charger.
Pulse Current Measurement
While measuring pulse current, users can set trigger levels to avoid measuring noise. Trigger level setting range is from 0.005A to 5A(CH1). Signals, noises, transients below trigger levels will be ignored during measurement processes. The appropriate measurement integration time can be set by system or manual setting from 33.3μs to 833ms. Pulse current measurements facilitate designers to decide the required power supply allocation for DUT at the preliminary stage. Applications include batteries for portable RF module, blue tooth and cellular phone.
Long Integration Current Measurement
Long integration current measurement is to measure the average current of periodical pulse current in a long period of time. The measured pulse must be a complete periodical waveform or multiple complete periodical waveforms. The total measurement time is up to 60 seconds. Measurements can be taken from pulse’s positive edge trigger or negative edge trigger. Users can also take measurements from the beginning of power output. Long integration current measurement is to analyze power consumption for a period of time. For instance, users can measure the average power consumption of a cellular phone in use to analyze its internal RF module parameters.
For the practical usage, PPH-1506D and PPH-1510D can be programmed to output a sequential voltage variation according to the requirements. There are 1000 steps for users to edit output voltage, current and execution time. Programmable execution time range is from 0.001 second to 3600 seconds and the resolution is 0.001 second. Programmable recurring frequency is from 1 to 9999 or it can be set to infinite execution (set recurring frequency to 0).
Battery Simulation Function
The battery simulation function of both PPH- 1506D and PPH-1510D is equivalent to a variable resistance circuit internally connected in series to simulate battery’s output impedance. The function can also be regarded as a power supply with a variable internal resistor. The variable internal resistance range is from 0.000Ω to 1.000Ω and the resolution is 1mΩ. PPH-1506D and PPH-1510D can be utilized as a battery or an ideal voltage source Vset to be connected with variable resistance Res in series. The left diagram shows the battery simulation to produce output voltage Vout.
Built-in Digital Voltmeter
Both built-in Digital Volt-Meters(DVM) of PPH-1506D and PPH-1510D have a dedicated input terminal located on the front panel. With the DC voltage measurement range from 0 to +20VDC, PPH-1506D and PPH-1510D not only provide power supply for DUT but also measure the voltage on DUT. The read back accuracy reaches ±(0.05%+3mV) and read back resolution is 1mV. Users are able to save the cost of purchasing an extra voltage meter. Furthermore, DVM measurements can be remotely controlled by SCPI commands via a PC.
Mobile Communications Applications
The battery simulation function and pulse current measurement function of PPH-1506D and PPH-1510D are ideal for mobile communications measurements, including tests of cellular phone, wireless, blue tooth peripheral and wearable device. Monitoring pulse current of cellular phone in use is a very important test, which can be done by using one channel to simulate battery and the other channel to simulate USB charging device. By so doing, charging and measuring current changes can be achieved at the same time.
External Relay Control
PPH-1506D and PPH-1510D provide four control modes, including Limit, Trip, Limit Relay and Trip Relay. Limit mode is to maintain CC output when output current reaches CC value. Trip mode is to turn off power output when output current reaches CC value. When output current reaches CC value, Limit Relay will maintain CC output and execute simultaneous Relay operation to control external device. When output current reaches CC value, Trip Relay mode will turn off power output and execute simultaneous Relay operation to control external device.