iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Short answer: the EG8010 is a low-cost single-phase SPWM waveform controller, and the EGS002 adds gate-driver channels and a convenient interface. Neither is a complete, protected inverter. You still need the power bridge, transformer or DC-DC stage, output filter, sensing, thermal design, isolation, fusing and fast fault protection. EGS002 is reasonable for a carefully instrumented prototype; it is a poor substitute for a validated production inverter controller.
What the EG8010 and EGS002 actually contain
EG8010 IC
EGMicro documents the EG8010 as a digital, single-phase pure-sine SPWM generator. It provides selectable output frequency, soft-start logic, four dead-time choices, voltage/current/temperature feedback inputs, shutdown logic, UART functions and LCD-related support. Its documented carrier is approximately 23.4 kHz and it uses a 12 MHz external crystal. See the EG8010 product information.
EGS002 board
The EGS002 normally combines the EG8010 with two high/low-side driver channels, jumpers for frequency, soft start and dead time, indicator LEDs, feedback connections, an LCD connector and fan-control circuitry. It does not include the MOSFETs or IGBTs, transformer, output inductor and capacitors, battery protection, heatsink system, enclosure or guaranteed isolation.
The original manual shows an IR2110S-style driver arrangement, while boards sold under the same name can use alternatives such as EG2113-family devices. Inspect the actual PCB instead of assuming that a seller’s schematic matches your board. The manual is at https://grobotronics.com/images/companies/1/EGS002.pdf; documented marketplace variation is discussed at https://www.skynext.tech/index.php/2023/01/10/egmicro-egs00x-boards-review/.
#1 Best Overall
- EG8010 is a digital, fully functional pure sine inverter generator chip with dead zone control. It is applied to DC-DC-AC two-stage power conversion architecture or DC-AC single-stage power frequency transformer boost converter. Architecture, external 12MHz crystal oscillator, can realize pure sine 50Hz or 60Hz inverter chip with high precision, distortion and harmonics.
- The chip adopts CMOS technology and integrates SPWM sine generator, dead time control circuit, amplitude factor multiplier, circuit, circuit, RS232 serial communication interface and 12832 serial LCD driver module.
- Pure sine inverter driver board EGS002 EG8010 IR2110 driver module. Unipolar and bipolar modulation. Real-time processing of voltage, current and temperature feedback.
- With dead zone control, the pin sets 4 dead time: 300nS dead time 500nS dead time 1.0uS dead time 1.5uS dead time. Pin setting mode 1S response time.
- Serial communication sets output voltage, frequency and other parameters. The external serial port 12832 liquid crystal display module displays the voltage, frequency, temperature and current of the inverter.
The main architectural limitations
A fixed carrier frequency
The documented carrier is approximately 23.4 kHz. That is not inherently wrong, but it removes an important design choice. You cannot freely trade switching loss against filter size, audible noise, transformer design and EMI. At high bus voltage or current, MOSFET switching losses may be excessive; at lower frequencies, the output filter may need to be larger. The frequency is also close enough to the audible range that transformers, capacitors and mechanical structures can still produce audible components.
The limitation is inflexibility: the same carrier is applied to small 12 V experiments and much larger 48 V or high-voltage systems. The manufacturer’s carrier and frequency information is on the EG8010 page and in its datasheet.
Coarse, load-dependent dead time
The available settings are 300 ns, 500 ns, 1.0 µs and 1.5 µs; the standard EGS002 configuration defaults to 300 ns. Dead time must cover driver propagation delay, MOSFET turn-off, gate charge, Miller effects, temperature, gate resistance and layout inductance.
Rank #2
- EGS002 Pure Sine Wave Inverter Drive Board
- External 12MHz crystal oscillator
- PWM carrier frequency 23.4KHz
- External Serial LCD Module 1602 displays
- 5V single power supply
Too little dead time can produce cross-conduction and destroy a bridge. Too much causes zero-crossing distortion, body-diode conduction, reverse-recovery loss, lower effective output voltage and half-cycle asymmetry. A jumper choice cannot be selected reliably from a MOSFET part number alone. Measure gate-to-source waveforms at the intended bus voltage, temperature, gate resistance and load. A third-party review notes that the fixed carrier makes the longer settings proportionally significant; treat that as practical analysis rather than a guaranteed specification.
Protection inputs are not complete protection
The board advertises overvoltage, undervoltage, overcurrent and overtemperature shutdown. Its documented LED indications are normal continuously on, two flashes for overcurrent, three for overvoltage, four for undervoltage and five for overtemperature (manual).
Each function depends on external circuitry:
- Voltage protection depends on correctly scaled, filtered VFB wiring.
- Current protection depends on a suitable sensor, layout and threshold.
- Temperature protection depends on sensor location, thermal coupling and calibration.
- Undervoltage feedback may not represent the real battery condition.
- Control-board shutdown may be too slow to stop a destructive short-circuit transient.
The EG8010 datasheet gives typical feedback references of about 3.0 V for voltage, 0.5 V for current and 4.3 V for temperature under stated 5 V conditions. These are design references, not universal safe limits for every assembled inverter. Fast hardware overcurrent protection, semiconductor protection, fuses and battery-side limiting may still be required.
Rank #3
- EG8010 is a digital, fully functional pure sine inverter generator chip with dead zone control. It is applied to DC-DC-AC two-stage power conversion architecture or DC-AC single-stage power frequency transformer boost converter. Architecture, external 12MHz crystal oscillator, can realize pure sine 50Hz or 60Hz inverter chip with high precision, distortion and harmonics.
- The chip adopts CMOS technology and integrates SPWM sine generator, dead time control circuit, amplitude factor multiplier, circuit, circuit, RS232 serial communication interface and 12832 serial LCD driver module.
- Pure sine inverter driver board EGS002 EG8010 IR2110 driver module. Unipolar and bipolar modulation. Real-time processing of voltage, current and temperature feedback.
- With dead zone control, the pin sets 4 dead time: 300nS dead time 500nS dead time 1.0uS dead time 1.5uS dead time. Pin setting mode 1S response time.
- Serial communication sets output voltage, frequency and other parameters. The external serial port 12832 liquid crystal display module displays the voltage, frequency, temperature and current of the inverter.
Board-to-board inconsistency
“EGS002” is not a tightly controlled global production identifier. Sellers may substitute driver ICs, passive components or feedback networks, and assembly quality varies. Photograph the board, identify the driver markings, trace the feedback network, inspect jumper bridges on both sides and verify local bypass capacitors before applying power. Do not copy a schematic from a different listing without checking it against the physical board.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchIt is not a current-mode inverter controller
EG8010 feedback can regulate voltage-related behavior, but it should not be treated as a modern cycle-by-cycle current-mode platform. Motors, compressors, transformer inrush, rectifier-capacitor loads and switch-mode supplies can demand fast current control that a voltage-SPWM arrangement does not inherently provide. Difficult loads may require a current transformer, comparator-based hardware shutdown, cycle-by-cycle limiting, a properly designed output inductor and independent DC-bus current limiting.
EGMicro’s catalog describes newer devices with current-mode or enhanced feedback features. Those descriptions show the capability gap, not that EG8010 is unusable: EGMicro controller catalog.
Rank #4
- 2Set EGS002 EG8010 IR2110 Driver Module with LCD Pure Sine Wave Inverter Driver
Why protection tests can look like board failures
EGS002 test instructions commonly ground feedback inputs during bench testing. The documentation also states that grounding VFB can trigger undervoltage protection after roughly three seconds, stopping the test outputs and producing the corresponding LED indication (manual mirror). A board that runs briefly and then stops may therefore be responding exactly as configured.
- Verify the clean 5 V logic supply.
- Verify the driver rail; the test documentation allows approximately 12–15 V (test manual).
- Check that frequency and dead-time jumpers are not in conflicting states.
- Apply measured test voltages to VFB, IFB and TFB rather than arbitrary signals.
- Decode the LED pattern and probe TEST outputs before connecting a bridge.
Gate-driver and layout risks
The EGS002 supplies drive signals; it does not guarantee safe switching of a large MOSFET bank. Long wires, inadequate local bypassing, bootstrap problems, unequal gate resistors, Miller-induced turn-on, driver-rail droop, common-source inductance and ground bounce can create shoot-through or excessive ringing.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Measure gate-to-source voltage directly at every device, including high-side devices; gate-to-ground measurements can be misleading. Also inspect simultaneous high- and low-side timing, drain-source overshoot, ringing and driver-supply collapse. The manual’s recommendation for shielded LCD wiring is a reminder that the module is sensitive to a high-current, high-voltage installation (EGS002 manual).
Best Value
- 1set DC-DC DC-AC Pure Sine Wave Inverter Generator SPWM Boost Driver Board EGS002 "EG8010 + IR2110" Driver Module +LCD
Why “pure sine wave” is not a guarantee
The IC creates a sine-referenced SPWM pattern. The completed inverter’s waveform depends on DC-bus regulation, modulation index, dead time, switching transitions, transformer leakage, filter design, load power factor, parasitics and feedback behavior. Under load it can show zero-crossing distortion, switching residue, DC offset, voltage spikes, poor regulation or high distortion with nonlinear loads.
Validate RMS voltage, frequency, peak voltage, DC component, switching residue, temperature rise, battery current and efficiency. Measure THD where possible. A visually smooth open-circuit trace is not proof of clean power for sensitive equipment.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Safety architecture is outside the board
EGS002 does not provide automatic galvanic isolation. Control ground, battery negative, bridge nodes, heatsinks, transformer windings and AC output can be hazardous depending on topology. A transformer does not make every node safe. Heatsinks may be live, and an oscilloscope ground clip can short a floating node to earth. Fusing, precharge, discharge resistors, creepage, clearance, enclosure and touch protection are separate engineering tasks.
Free tools Windows power users keep installed
One-click scans. No signup required.
A safer bring-up sequence
1. Board-only
- Inspect the PCB and identify driver ICs.
- Verify jumper settings and apply separate, measured 5 V and driver supplies.
- Use known feedback voltages, confirm the normal LED state and observe TEST outputs.
2. Driver-only
- Attach representative gate capacitance or a low-risk test load.
- Measure gate-to-source timing, dead time, ringing and high-side bootstrap behavior.
- Confirm the driver rail remains stable during switching.
3. Low-voltage bridge
- Use a current-limited DC supply, low bus voltage, resistive load, fuse and emergency disconnect.
- Monitor bridge current, drain overshoot, output DC offset and MOSFET temperature.
- Increase voltage and load gradually.
4. Protection validation
Raise VFB, lower VFB, inject a controlled IFB signal and heat the temperature sensor separately. Confirm gate shutdown with an oscilloscope, determine whether recovery is automatic or latched, and test fault behavior while the bridge is energized. An LED indication alone does not prove that the power devices turned off quickly enough.
Symptoms and likely causes
| Symptom | Likely causes | Checks |
|---|---|---|
| Runs briefly, then stops | Undervoltage feedback or intentional test configuration | VFB scaling, LED code and three-second behavior |
| No gate output | Wrong supply, active protection or conflicting jumpers | 5 V, 12–15 V rail, feedback pins and jumpers |
| One leg differs | Driver substitution, bootstrap fault or layout asymmetry | Driver marking and high-side gate waveform |
| MOSFETs heat at no load | Shoot-through, ringing or unsuitable dead time | Gate-to-source timing and bridge current |
| Low output voltage | Dead-time loss, bus sag, modulation limit or transformer ratio | Bus voltage, modulation and dead-time settings |
| Distortion near zero crossing | Excessive dead time, diode conduction or filter problems | Compare settings under controlled load |
| Random shutdown | Noise on feedback lines or poor decoupling | Shielding, routing, filtering and bypass capacitors |
| Transformer saturates | DC offset, asymmetrical switching or incorrect volt-seconds | Bridge symmetry, output DC and temperature |
| Resistive load works but motor fails | Insufficient transient and current handling | Current sensing, bus sag, startup and filter design |
When EGS002 is appropriate
- Educational or experimental single-phase projects.
- Modest power where the designer can build and instrument the external stage.
- Projects that accept manual tuning, board inspection and independent protection design.
- Builders with suitable differential voltage and isolated-current measurement.
When to choose something else
- Unattended, safety-critical, appliance, medical or industrial operation.
- Motors, compressors or large nonlinear loads.
- High-efficiency, formal EMC or safety compliance requirements.
- High power where a driver failure releases substantial fault energy.
- Production designs requiring traceability and consistent board populations.
Possible alternatives
EGMicro lists EG8013, EG8015 and EG8020; check package, pinout, modulation mode, driver requirements and documentation before treating any as a replacement. EG8013 is described by EGMicro as a digital current-mode controller, while EG8015 and EG8020 use different integration and feature sets (catalog; EG8015 page).
A microcontroller with dedicated drivers allows programmable frequency, dead time, current control, logging and communications, but adds firmware, watchdog, EMI and verification responsibilities. A complete commercial inverter costs more but supplies coordinated protection, tested magnetics, enclosure, EMC work and production traceability.
Quick Recap
Final decision checklist
- Have you designed the transformer or DC-DC stage and output filter, rather than only connected a module?
- Have you measured every MOSFET’s gate-to-source waveform at the real bus voltage?
- Are fast hardware overcurrent protection, fuses, precharge and battery limiting independent of the EG8010 feedback loop?
- Have you validated VFB, IFB and TFB thresholds and fault recovery?
- Have you checked creepage, clearance, heatsink potential, isolation and safe probing?
- Can the design tolerate board-to-board variation and replacement parts?
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minute
