NGI Battery Simulator N8352 Series Application in Cell Phone Battery Supporting Current flowing in Both Directions

PublishTime： 2023-08-02 Article Source：NGI News

The role of the Battery Simulator is to emulate the output state and charging & discharging characteristics of real batteries. It can change the battery SOC, depth of discharge, open circuit voltage, internal resistance, and other conditions at any time according to the needs of the user, and rapidly verify the DUT's response under different battery conditions. Nowadays, most consumer electronics need to be powered by Li-ion batteries. Especially in the cellphone industry, battery life is becoming increasingly prominent. The test for batteries is becoming more and more stringent. Compared with real batteries, battery simulator possesses the following advantages. It can simulate the battery variation curve, shorten the test cycle and repeat the test through the established model, which can improve the reliability of the test data.

N8352 series is a high-precision dual-channel programmable battery simulator specially designed for the development and testing of portable battery-powered products (such as Bluetooth headsets, cell phones, AR/VR smart terminals, electrical tools, etc.). The current flows in both directions and can be used as either a power supply or a load. N8352 is easy to operate with a touch screen and UI design. The output features are comparable to actual batteries, with fast dynamic response, no overshoot in voltage rise and fall, and stable waveform. The resolution is up to the nA level, which can test the loop static power consumption. N8352 can be widely used in the area of consumer electronics testing.

What are the advantages of N8352 in cell phone battery tests? Let's find out.

Current flowing in both directions to make N8352 both a power supply and a load

Both channels of N8352 can charge and discharge. Thus either channel can be used as a power supply, connecting to a mobile power terminal. The other channel can be used as a battery, connecting to the mobile battery terminal. Both charging and discharging performance can be tested without chaNGIng the cables. A single machine can be used to test a charge & discharge protection board without additional switches, which greatly reduces the complexity of the test system and improves testing stability and efficiency.

Variable output impedance allowing battery internal resistance simulation

N8352 has the battery internal resistance simulation function and supports resistance value programming. The programmable range is 0-1Ω, which can emulate the variation curve consistent with the real battery internal resistance characteristics.

Ultra-fast no overshoot transient response which is comparable to real battery

N8352 series can ensure that there is no overshoot in voltage changes under no-load or on-load conditions, preventing damage to the DUT due to voltage overcharge and over-discharge. It can avoid affect to product quality. This feature meets the test demand for strictly regulated power products.

Built-in fault simulation

Besides the battery's normal state, the following fault states can also be simulated: open circuit, polarity reverse, and short circuit.

DVM Test Function

Besides the battery simulator function, the N8352 series also provides a basic circuit measurement function. It has two built-in high-accuracy DVM digital multimeters to test external voltage. The voltage range is -30V ~ 30V, and the display resolution is 0.1mV. The touch screen will show the dynamic data, which is convenient for users to observe the voltage changes.

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