Switching Power Amplifier

JOEO switching power amplifiers use an intelligent logic control system to ensure optimal performance, safety and reliability. Standard amplifier output ranges from 1 to 480 kVA. Interlocks to prevent vibrator damage or operator injury include: overvoltage, overcurrent, amplifier overheat, vibrator overheat, overrange, phase failures, and power module failures. The amplifier provides drive power for vibrators, excitation coils, blower units, and other auxiliary components.

Amplfier Model	JER-H402A	JER-H802A	JER-H123A	JER-H243A	JER-H323A	JER-H563A
Max. Output Power (kVA)	4	8	12	24	32	56
Number of Power Modules	1	1	2	3	4	7
Rated Output Voltage (Vrms)	120	120	120	120	120	120
Switching Frequency(Hz)	150k	150k	150k	150k	150k	150k
Harmonic Distortion (5-5000Hz)	≤0.8%	≤0.8%	≤0.8%	≤0.8%	≤0.8%	≤0.8%
Signal Noise Ratio (dB)	>65	>65	>65	>65	>65	>65
Frequency response(5-5000Hz)	±1.5dB	±1.5dB	±1.5dB	±1.5dB	±1.5dB	±1.5dB
Input Impedance(KQ)	>10	>10	>10	>10	>10	>10
Output field voltage(VDC)	270	270	270	270	270	270
Amplifier Efficiency	>93%	>93%	>93%	>93%	>93%	>93%
Interlocks Protection	Input over/less voltage, Output over current/voltage, over travel/temperature, Oil pressure, Logic/module/cooling failure, etc.

Switching Power Amplifier

Switching Power Amplifier

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