Load Dump pulses simulate the sudden disconnection (e.g. by corrosion) of the battery from the alternator while the alternator is generating current to load the battery. Such Load Dump pulses are high energy pulses with a high potential of destruction.
The LD 200S19 is a standalone pulse generator including a 60V/25A DC coupling/decoupling network but still it can be integrated easily into a complete test system. Operation is both manual and by software via GPIB or RS232. Fail inputs allow to control an ongoing test sequence based on the status of the DUT. A warning lamp control contact is provided as well as a safety interlock. Pre-programmed Standard Test routines allow highest user convenience.
The LD 200S19 generates the Load Dump pulses Test 1, Test 2 (Giant Pulse) and Test 3 as per Toyota specification.
Features:
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Load Dump generator as per Toyota Specification
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Generates pulses Test 1, Test 2 and Test 3
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Built-in coupling network for 60V/25A DC
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Front panel operation
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Standard Test routines
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USB and GPIB interfaces
Application:
Specifications:
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LOAD DUMP TEST 1 AS PER 5.5.3 |
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Voltage (o.c.) |
80V ± 2V |
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Rise time |
< 10us |
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Pulse duration |
52us ± 5us (measured at tau) |
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Output resistor |
2.5ohm |
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Polarity |
Positive |
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Repetition time |
1 pulse each 5ms |
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Test time |
10min |
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Coupling |
Superimposed to the battery supply line |
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LOAD DUMP TEST 2 - GIANT PULSE - AS PER 5.5.4 |
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Voltages (o.c.) |
50V ± 2V
80V ± 2V
110V ± 2V |
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Rise time |
< 1ms |
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Pulse duration |
188ms ± 4ms (measured at tau) |
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Output resistor |
2.5ohm |
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Polarity |
Positive |
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Repetition time |
1 pulse per minute |
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Coupling |
Superimposed to the battery supply line |
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LOAD DUMP TEST 3 - HIGH REPETITIVE LOAD DUMP AS PER 5.5.5 |
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Voltage (o.c.) |
80V ± 2V |
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Rise time |
< 10us |
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Pulse duration |
52us ± 5us (measured at tau) |
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Output resistor |
2.5ohm |
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Polarity |
Positive |
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Repetition time |
1 pulse each 5ms |
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Positive pole surge |
+30V +0V/-1V |
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Duration |
300ms |
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Repetition time |
1 pulse per minute |
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Control |
DC supply controlled by LD 200S19 |
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Coupling |
Superimposed to the battery supply line |
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TRIGGER |
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Automatic |
Automatic pulse release |
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Counter |
1 - 1,000,000 |
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Battery supply |
Max. 60V/50A with 100A inrush current External DC source or battery is requested |
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Superimposed |
+ line |
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Decoupled |
By diode network |
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GENERAL DATA |
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Dimensions, weight |
19"/6HU, approx. 18kg |
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Supply voltage |
115/230V +10/-15% |
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Fuses |
2 x 1AT |